21426839

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{211}}^1$

素因数の和:470

約数の個数: 16

約数和(自身を含む): 25032960

約数和(自身を除く): 3606121

約数列:

[1, 7, 89, 163, 211, 623, 1141, 1477, 14507, 18779, 34393, 101549, 131453, 240751, 3060977, 21426839]

約数ペア:

[(1, 21426839), (7, 3060977), (89, 240751), (163, 131453), (211, 101549), (623, 34393), (1141, 18779), (1477, 14507)]