Q: What is the sum of all factors of the number 22,121,001 excluding 22,121,001?

A: 15,486,231

Why is 15,486,231 the sum of all factors of 22,121,001, excluding 22,121,001?

The factors of the number 22,121,001 are: 1, 3, 7, 9, 21, 49, 63, 103, 147, 309, 441, 487, 721, 927, 1461, 2163, 3409, 4383, 5047, 6489, 10227, 15141, 23863, 30681, 45423, 50161, 71589, 150483, 214767, 351127, 451449, 1053381, 2457889, 3160143, 7373667, 22121001.

If you add them up, you will get the total of 22,121,016. Now subtract 22,121,001 to get 15,486,231