21410901

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{569}}^1$

素因数の和:725

約数の個数: 24

約数和(自身を含む): 32100120

約数和(自身を除く): 10689219

約数列:

[1, 3, 9, 37, 111, 113, 333, 339, 569, 1017, 1707, 4181, 5121, 12543, 21053, 37629, 63159, 64297, 189477, 192891, 578673, 2378989, 7136967, 21410901]

約数ペア:

[(1, 21410901), (3, 7136967), (9, 2378989), (37, 578673), (111, 192891), (113, 189477), (333, 64297), (339, 63159), (569, 37629), (1017, 21053), (1707, 12543), (4181, 5121)]