Q: What is the sum of all factors of the number 21,311,456 excluding 21,311,456?

 A: 20,645,536

Why is 20,645,536 the sum of all factors of 21,311,456, excluding 21,311,456?

The factors of the number 21,311,456 are: 1, 2, 4, 8, 16, 32, 665983, 1331966, 2663932, 5327864, 10655728, 21311456.

If you add them up, you will get the total of 21,311,476. Now subtract 21,311,456 to get 20,645,536


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