Q: What is the sum of all factors of the number 261,621,415 excluding 261,621,415?

A: 106,074,521

Why is 106,074,521 the sum of all factors of 261,621,415, excluding 261,621,415?

The factors of the number 261,621,415 are: 1, 5, 11, 17, 55, 73, 85, 187, 365, 803, 935, 1241, 3833, 4015, 6205, 13651, 19165, 42163, 65161, 68255, 210815, 279809, 325805, 716771, 1399045, 3077899, 3583855, 4756753, 15389495, 23783765, 52324283, 261621415.

If you add them up, you will get the total of 261,621,521. Now subtract 261,621,415 to get 106,074,521