Q: What is the sum of all factors of the number 10,215,216 excluding 10,215,216?

A: 20,976,984

Why is 20,976,984 the sum of all factors of 10,215,216, excluding 10,215,216?

The factors of the number 10,215,216 are: 1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 44, 48, 66, 72, 88, 99, 132, 144, 176, 198, 264, 396, 528, 792, 1584, 6449, 12898, 19347, 25796, 38694, 51592, 58041, 70939, 77388, 103184, 116082, 141878, 154776, 212817, 232164, 283756, 309552, 425634, 464328, 567512, 638451, 851268, 928656, 1135024, 1276902, 1702536, 2553804, 3405072, 5107608, 10215216.

If you add them up, you will get the total of 10,215,236. Now subtract 10,215,216 to get 20,976,984