Q: What is the sum of all factors of the number 21,042,312 excluding 21,042,312?

 A: 31,728,888

Why is 31,728,888 the sum of all factors of 21,042,312, excluding 21,042,312?

The factors of the number 21,042,312 are: 1, 2, 3, 4, 6, 8, 12, 24, 367, 734, 1101, 1468, 2202, 2389, 2936, 4404, 4778, 7167, 8808, 9556, 14334, 19112, 28668, 57336, 876763, 1753526, 2630289, 3507052, 5260578, 7014104, 10521156, 21042312.

If you add them up, you will get the total of 21,042,343. Now subtract 21,042,312 to get 31,728,888


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