Q: What is the sum of all factors of the number 421,043,142 excluding 421,043,142?

A: 499,365,690

Why is 499,365,690 the sum of all factors of 421,043,142, excluding 421,043,142?

The factors of the number 421,043,142 are: 1, 2, 3, 6, 13, 26, 39, 67, 78, 134, 201, 402, 871, 1742, 2613, 5226, 80567, 161134, 241701, 483402, 1047371, 2094742, 3142113, 5397989, 6284226, 10795978, 16193967, 32387934, 70173857, 140347714, 210521571, 421043142.

If you add them up, you will get the total of 421,043,641. Now subtract 421,043,142 to get 499,365,690