Q: What is the sum of all factors of the number 210,300,321 excluding 210,300,321?

A: 140,350,047

Why is 140,350,047 the sum of all factors of 210,300,321, excluding 210,300,321?

The factors of the number 210,300,321 are: 1, 3, 7, 11, 21, 33, 77, 231, 383, 1149, 2377, 2681, 4213, 7131, 8043, 12639, 16639, 26147, 29491, 49917, 78441, 88473, 183029, 549087, 910391, 2731173, 6372737, 10014301, 19118211, 30042903, 70100107, 210300321.

If you add them up, you will get the total of 210,300,461. Now subtract 210,300,321 to get 140,350,047