Q: What is the sum of all factors of the number 21,210,400 including 21,210,400?

A: 51,781,842

Why is 51,781,842 the sum of all factors of 21,210,400, including 21,210,400?

The factors of the number 21,210,400 are: 1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 26513, 53026, 106052, 132565, 212104, 265130, 424208, 530260, 662825, 848416, 1060520, 1325650, 2121040, 2651300, 4242080, 5302600, 10605200, 21210400.

If you add them up, you will get the total of 51,781,842.