Q: What is the sum of all factors of the number 210,402,426 excluding 210,402,426?

A: 247,189,254

Why is 247,189,254 the sum of all factors of 210,402,426, excluding 210,402,426?

The factors of the number 210,402,426 are: 1, 2, 3, 6, 13, 26, 39, 78, 103, 206, 309, 618, 1339, 2678, 4017, 8034, 26189, 52378, 78567, 157134, 340457, 680914, 1021371, 2042742, 2697467, 5394934, 8092401, 16184802, 35067071, 70134142, 105201213, 210402426.

If you add them up, you will get the total of 210,402,673. Now subtract 210,402,426 to get 247,189,254