Q: What is the sum of all factors of the number 12,138,021 excluding 12,138,021?
A: 7,899,451
The factors of the number 12,138,021 are: 1, 3, 7, 9, 21, 63, 192667, 578001, 1348669, 1734003, 4046007, 12138021.
If you add them up, you will get the total of 12,138,028. Now subtract 12,138,021 to get 7,899,451