Q: What is the sum of all factors of the number 16,566,100 excluding 16,566,100?

A: 21,278,700

Why is 21,278,700 the sum of all factors of 16,566,100, excluding 16,566,100?

The factors of the number 16,566,100 are: 1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 8719, 17438, 34876, 43595, 87190, 165661, 174380, 217975, 331322, 435950, 662644, 828305, 871900, 1656610, 3313220, 4141525, 8283050, 16566100.

If you add them up, you will get the total of 16,566,121. Now subtract 16,566,100 to get 21,278,700