# Issue

*This Content is from Stack Overflow. Question asked by Minh *

```
def richNumber(n):
nb = []
n = int(n)
sum1 = 0
for i in(n, n+1):
if n % i ==0:
nb.append(i)
sum1 = sum(nb) - nb[-1]
if sum1 > n:
return True
else:
return False
n = int(input("n:"))
print(richNumber(n))
```

I have 5 Test Cases:

n = 4

n = 12

n = 6

n = 20

n = 100With n = 4 and 6 the output is false

,with n = 12,20,100 is supposed to be true but its showing false

# Solution

```
for i in (n, n+1)
```

Iterates over two numbers, `n`

and `n + 1`

, not all divisors. You need to use `range`

to iterate from `1`

to `n`

```
for i in range(1, n + 1)
```

This Question was asked in StackOverflow by Minh and Answered by Guy It is licensed under the terms of CC BY-SA 2.5. - CC BY-SA 3.0. - CC BY-SA 4.0.