Q: What is the sum of all factors of the number 2,121,021 excluding 2,121,021?
A: 1,420,803
The factors of the number 2,121,021 are: 1, 3, 7, 9, 21, 63, 131, 257, 393, 771, 917, 1179, 1799, 2313, 2751, 5397, 8253, 16191, 33667, 101001, 235669, 303003, 707007, 2121021.
If you add them up, you will get the total of 2,121,022. Now subtract 2,121,021 to get 1,420,803