Q: What is the sum of all factors of the number 321,221,322 excluding 321,221,322?

A: 394,357,878

Why is 394,357,878 the sum of all factors of 321,221,322, excluding 321,221,322?

The factors of the number 321,221,322 are: 1, 2, 3, 6, 9, 18, 27, 54, 419, 838, 1257, 2514, 3771, 7542, 11313, 14197, 22626, 28394, 42591, 85182, 127773, 255546, 383319, 766638, 5948543, 11897086, 17845629, 35691258, 53536887, 107073774, 160610661, 321221322.

If you add them up, you will get the total of 321,221,716. Now subtract 321,221,322 to get 394,357,878