Q: What is the sum of all factors of the number 21,137,505 excluding 21,137,505?
A: 14,141,343
The factors of the number 21,137,505 are: 1, 3, 5, 15, 31, 93, 131, 155, 347, 393, 465, 655, 1041, 1735, 1965, 4061, 5205, 10757, 12183, 20305, 32271, 45457, 53785, 60915, 136371, 161355, 227285, 681855, 1409167, 4227501, 7045835, 21137505.
If you add them up, you will get the total of 21,137,519. Now subtract 21,137,505 to get 14,141,343