Q: What is the sum of all factors of the number 121,221,015 excluding 121,221,015?

A: 80,609,385

Why is 80,609,385 the sum of all factors of 121,221,015, excluding 121,221,015?

The factors of the number 121,221,015 are: 1, 3, 5, 15, 29, 87, 145, 191, 435, 573, 955, 1459, 2865, 4377, 5539, 7295, 16617, 21885, 27695, 42311, 83085, 126933, 211555, 278669, 634665, 836007, 1393345, 4180035, 8081401, 24244203, 40407005, 121221015.

If you add them up, you will get the total of 121,221,095. Now subtract 121,221,015 to get 80,609,385