Q: What is the sum of all factors of the number 261,307,618 excluding 261,307,618?

A: 214,049,054

Why is 214,049,054 the sum of all factors of 261,307,618, excluding 261,307,618?

The factors of the number 261,307,618 are: 1, 2, 11, 13, 22, 26, 31, 62, 143, 286, 341, 403, 682, 806, 4433, 8866, 29473, 58946, 324203, 383149, 648406, 766298, 913663, 1827326, 4214639, 8429278, 10050293, 11877619, 20100586, 23755238, 130653809, 261307618.

If you add them up, you will get the total of 261,307,832. Now subtract 261,307,618 to get 214,049,054