Q: What is the sum of all factors of the number 398,619 excluding 398,619?
A: 221,637
The factors of the number 398,619 are: 1, 3, 9, 13, 39, 117, 3407, 10221, 30663, 44291, 132873, 398619.
If you add them up, you will get the total of 398,840. Now subtract 398,619 to get 221,637