Q: What is the sum of all factors of the number 15,257,421 excluding 15,257,421?
A: 7,009,551
The factors of the number 15,257,421 are: 1, 3, 9, 97, 291, 873, 17477, 52431, 157293, 1695269, 5085807, 15257421.
If you add them up, you will get the total of 15,257,428. Now subtract 15,257,421 to get 7,009,551