21931085

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{283}}^1\times {\mathrm{1409}}^1$

素因数の和:1708

約数の個数: 16

約数和(自身を含む): 28831680

約数和(自身を除く): 6900595

約数列:

[1, 5, 11, 55, 283, 1409, 1415, 3113, 7045, 15499, 15565, 77495, 398747, 1993735, 4386217, 21931085]

約数ペア:

[(1, 21931085), (5, 4386217), (11, 1993735), (55, 398747), (283, 77495), (1409, 15565), (1415, 15499), (3113, 7045)]