Q: What is the sum of all factors of the number 21,017,421 excluding 21,017,421?
A: 10,259,379
The factors of the number 21,017,421 are: 1, 3, 9, 27, 239, 717, 2151, 3257, 6453, 9771, 29313, 87939, 778423, 2335269, 7005807, 21017421.
If you add them up, you will get the total of 21,017,431. Now subtract 21,017,421 to get 10,259,379