Q: What is the sum of all factors of the number 1,279,395 excluding 1,279,395?

A: 1,200,621

Why is 1,200,621 the sum of all factors of 1,279,395, excluding 1,279,395?

The factors of the number 1,279,395 are: 1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 243, 351, 405, 585, 729, 1053, 1215, 1755, 2187, 3159, 3645, 5265, 6561, 9477, 10935, 15795, 19683, 28431, 32805, 47385, 85293, 98415, 142155, 255879, 426465, 1279395.

If you add them up, you will get the total of 1,279,396. Now subtract 1,279,395 to get 1,200,621