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Where did my proper divisor sum program went wrong?

Here in Python, I created a program for [this challenge](https://codegolf.codidact.com/posts/282244) and I'm having trouble debugging it. I already fixed most errors I have on my program but here's what I have left:
~~```~~
x=y=z=[];i=0.0;a=int(input());b=0
for c in range(1,a+1):
for d in range(1,a):
i+=1
if a/c==i and c!=a:b+=c
if b<a:x.append(c)
elif b>a:y.append(c)
else:z.append(c)
i=b=0
print("[",end='')
for j in x:
print(j,end='')
if j!=len(x):print(" ",end='')
print("], [",end='')
for j in y:
print(j,end='')
if j!=len(y):print(" ",end='')
print("], [",end='')
for j in z:
print(j,end='')
if j!=len(z):print(" ",end='')
print("]",end='')
```
Basically, I'm trying to make a number checker so I can get the inputted number's proper divisor sum, which in my understanding is the sum of divisors that results in a quotient that can be formatted as `n.00000...`, but the resulting output leaves me with all the numbers from 1 to the input. [See it for yourself! (SIFY)](https://tio.run/##lY5fC4IwFEef9VOsXtpQSoleZrcvIj5c56qJrGEGzi9v3Yr@QAg9Dc6Pe3ac744nux7HHjwMkBeZgWSZZAjGdtxYd@m4EFkJSbg/tUwxY1mL9qB5GmOUChkGxKsvTjQwEaT07BmuFIBhaCumZoCyjECFNJRblP0SndO24kqEgW6I7lD6b3rWcvgkBijItdQ4z@fxjcNiIe6JNaX0t4LHXL9G@rGeQaMt74V8HrP38ZMUMftl9NNG/79xmDYOU8YXGcd0cwU)
I've been trying to figure out where the problem lies and I suspect it has to do with the first `for` loop, but I don't know where exactly to fix. Where did I mess up or how do I fix this?

Here in Python, I created a program for [this challenge](https://codegolf.codidact.com/posts/282244) and I'm having trouble debugging it. I already fixed most errors I have on my program but here's what I have left:
```python
x=y=z=[];i=0.0;a=int(input());b=0
for c in range(1,a+1):
for d in range(1,a):
i+=1
if a/c==i and c!=a:b+=c
if b<a:x.append(c)
elif b>a:y.append(c)
else:z.append(c)
i=b=0
print("[",end='')
for j in x:
print(j,end='')
if j!=len(x):print(" ",end='')
print("], [",end='')
for j in y:
print(j,end='')
if j!=len(y):print(" ",end='')
print("], [",end='')
for j in z:
print(j,end='')
if j!=len(z):print(" ",end='')
print("]",end='')
```
Basically, I'm trying to make a number checker so I can get the inputted number's proper divisor sum, which in my understanding is the sum of divisors that results in a quotient that can be formatted as `n.00000...`, but the resulting output leaves me with all the numbers from 1 to the input. [See it for yourself! (SIFY)](https://tio.run/##lY5fC4IwFEef9VOsXtpQSoleZrcvIj5c56qJrGEGzi9v3Yr@QAg9Dc6Pe3ac744nux7HHjwMkBeZgWSZZAjGdtxYd@m4EFkJSbg/tUwxY1mL9qB5GmOUChkGxKsvTjQwEaT07BmuFIBhaCumZoCyjECFNJRblP0SndO24kqEgW6I7lD6b3rWcvgkBijItdQ4z@fxjcNiIe6JNaX0t4LHXL9G@rGeQaMt74V8HrP38ZMUMftl9NNG/79xmDYOU8YXGcd0cwU)
I've been trying to figure out where the problem lies and I suspect it has to do with the first `for` loop, but I don't know where exactly to fix. Where did I mess up or how do I fix this?

python debugging

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