21157938

素因数分解:

$2^1\times 3^2\times {\mathrm{79}}^1\times {\mathrm{14879}}^1$

素因数の和:14966

約数の個数: 24

約数和(自身を含む): 46425600

約数和(自身を除く): 25267662

約数列:

[1, 2, 3, 6, 9, 18, 79, 158, 237, 474, 711, 1422, 14879, 29758, 44637, 89274, 133911, 267822, 1175441, 2350882, 3526323, 7052646, 10578969, 21157938]

約数ペア:

[(1, 21157938), (2, 10578969), (3, 7052646), (6, 3526323), (9, 2350882), (18, 1175441), (79, 267822), (158, 133911), (237, 89274), (474, 44637), (711, 29758), (1422, 14879)]