Q: What is the sum of all factors of the number 3,987,139 excluding 3,987,139?
A: 306,717
The factors of the number 3,987,139 are: 1, 13, 306703, 3987139.
If you add them up, you will get the total of 3,987,445. Now subtract 3,987,139 to get 306,717