21552340

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{6229}}^1$

素因数の和:6411

約数の個数: 24

約数和(自身を含む): 45528840

約数和(自身を除く): 23976500

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 6229, 12458, 24916, 31145, 62290, 124580, 1077617, 2155234, 4310468, 5388085, 10776170, 21552340]

約数ペア:

[(1, 21552340), (2, 10776170), (4, 5388085), (5, 4310468), (10, 2155234), (20, 1077617), (173, 124580), (346, 62290), (692, 31145), (865, 24916), (1730, 12458), (3460, 6229)]