Q: What is the sum of all factors of the number 247,421,678 excluding 247,421,678?

A: 200,346,322

Why is 200,346,322 the sum of all factors of 247,421,678, excluding 247,421,678?

The factors of the number 247,421,678 are: 1, 2, 7, 14, 29, 49, 58, 98, 203, 343, 406, 686, 1421, 2842, 9947, 12437, 19894, 24874, 87059, 174118, 360673, 609413, 721346, 1218826, 2524711, 4265891, 5049422, 8531782, 17672977, 35345954, 123710839, 247421678.

If you add them up, you will get the total of 247,421,878. Now subtract 247,421,678 to get 200,346,322