Q: What is the sum of all factors of the number 20,200,401 excluding 20,200,401?

A: 14,057,199

Why is 14,057,199 the sum of all factors of 20,200,401, excluding 20,200,401?

The factors of the number 20,200,401 are: 1, 3, 9, 13, 19, 27, 39, 57, 117, 169, 171, 233, 247, 351, 507, 513, 699, 741, 1521, 2097, 2223, 3029, 3211, 4427, 4563, 6291, 6669, 9087, 9633, 13281, 27261, 28899, 39377, 39843, 57551, 81783, 86697, 118131, 119529, 172653, 354393, 517959, 748163, 1063179, 1553877, 2244489, 6733467, 20200401.

If you add them up, you will get the total of 20,200,415. Now subtract 20,200,401 to get 14,057,199