Q: What is the sum of all factors of the number 1,604,421 including 1,604,421?
A: 2,929,920
The factors of the number 1,604,421 are: 1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 653, 819, 1959, 2457, 4571, 5877, 8489, 13713, 17631, 25467, 41139, 59423, 76401, 123417, 178269, 229203, 534807, 1604421.
If you add them up, you will get the total of 2,929,920.