Q: What is the sum of all factors of the number 221,640,666 excluding 221,640,666?

A: 255,739,398

Why is 255,739,398 the sum of all factors of 221,640,666, excluding 221,640,666?

The factors of the number 221,640,666 are: 1, 2, 3, 6, 13, 26, 39, 78, 2841547, 5683094, 8524641, 17049282, 36940111, 73880222, 110820333, 221640666.

If you add them up, you will get the total of 221,640,921. Now subtract 221,640,666 to get 255,739,398

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