Q: What is the sum of all factors of the number 400,023 excluding 400,023?
A: 228,033
The factors of the number 400,023 are: 1, 3, 9, 13, 39, 117, 169, 263, 507, 789, 1521, 2367, 3419, 10257, 30771, 44447, 133341, 400023.
If you add them up, you will get the total of 400,251. Now subtract 400,023 to get 228,033