21545288

素因数分解:

$2^3\times {\mathrm{809}}^1\times {\mathrm{3329}}^1$

素因数の和:4144

約数の個数: 16

約数和(自身を含む): 40459500

約数和(自身を除く): 18914212

約数列:

[1, 2, 4, 8, 809, 1618, 3236, 3329, 6472, 6658, 13316, 26632, 2693161, 5386322, 10772644, 21545288]

約数ペア:

[(1, 21545288), (2, 10772644), (4, 5386322), (8, 2693161), (809, 26632), (1618, 13316), (3236, 6658), (3329, 6472)]