Q: What is the sum of all factors of the number 423,621 excluding 423,621?
A: 250,689
The factors of the number 423,621 are: 1, 3, 9, 11, 33, 99, 121, 363, 389, 1089, 1167, 3501, 4279, 12837, 38511, 47069, 141207, 423621.
If you add them up, you will get the total of 423,871. Now subtract 423,621 to get 250,689