21390492

素因数分解:

$2^2\times 3^1\times {\mathrm{677}}^1\times {\mathrm{2633}}^1$

素因数の和:3317

約数の個数: 24

約数和(自身を含む): 50003856

約数和(自身を除く): 28613364

約数列:

[1, 2, 3, 4, 6, 12, 677, 1354, 2031, 2633, 2708, 4062, 5266, 7899, 8124, 10532, 15798, 31596, 1782541, 3565082, 5347623, 7130164, 10695246, 21390492]

約数ペア:

[(1, 21390492), (2, 10695246), (3, 7130164), (4, 5347623), (6, 3565082), (12, 1782541), (677, 31596), (1354, 15798), (2031, 10532), (2633, 8124), (2708, 7899), (4062, 5266)]