Q: What is the sum of all factors of the number 12,621 excluding 12,621?
A: 6,643
The factors of the number 12,621 are: 1, 3, 7, 21, 601, 1803, 4207, 12621.
If you add them up, you will get the total of 12,627. Now subtract 12,621 to get 6,643