Q: What is the sum of all factors of the number 15,327,991 excluding 15,327,991?
A: 2,189,721
The factors of the number 15,327,991 are: 1, 7, 2189713, 15327991.
If you add them up, you will get the total of 15,327,993. Now subtract 15,327,991 to get 2,189,721