Q: What is the sum of all factors of the number 215,405,346 excluding 215,405,346?

A: 252,669,534

Why is 252,669,534 the sum of all factors of 215,405,346, excluding 215,405,346?

The factors of the number 215,405,346 are: 1, 2, 3, 6, 13, 26, 39, 78, 113, 226, 339, 678, 1469, 2938, 4407, 8814, 24439, 48878, 73317, 146634, 317707, 635414, 953121, 1906242, 2761607, 5523214, 8284821, 16569642, 35900891, 71801782, 107702673, 215405346.

If you add them up, you will get the total of 215,405,598. Now subtract 215,405,346 to get 252,669,534