Q: What is the sum of all factors of the number 12,990,991 excluding 12,990,991?
A: 999,321
The factors of the number 12,990,991 are: 1, 13, 999307, 12990991.
If you add them up, you will get the total of 12,991,990. Now subtract 12,990,991 to get 999,321