Q: What is the sum of all factors of the number 3,521,421 including 3,521,421?
A: 5,216,960
The factors of the number 3,521,421 are: 1, 3, 9, 27, 130423, 391269, 1173807, 3521421.
If you add them up, you will get the total of 5,216,960.