Q: What is the sum of all factors of the number 425,221,131 excluding 425,221,131?

A: 172,227,637

Why is 172,227,637 the sum of all factors of 425,221,131, excluding 425,221,131?

The factors of the number 425,221,131 are: 1, 3, 37, 73, 97, 111, 219, 291, 541, 1623, 2701, 3589, 7081, 8103, 10767, 20017, 21243, 39493, 52477, 60051, 118479, 157431, 261997, 785991, 1461241, 1941649, 3830821, 4383723, 5824947, 11492463, 141740377, 425221131.

If you add them up, you will get the total of 425,221,303. Now subtract 425,221,131 to get 172,227,637