20917137

素因数分解:

$3^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1\times {\mathrm{487}}^1$

素因数の和:732

約数の個数: 16

約数和(自身を含む): 28421120

約数和(自身を除く): 7503983

約数列:

[1, 3, 103, 139, 309, 417, 487, 1461, 14317, 42951, 50161, 67693, 150483, 203079, 6972379, 20917137]

約数ペア:

[(1, 20917137), (3, 6972379), (103, 203079), (139, 150483), (309, 67693), (417, 50161), (487, 42951), (1461, 14317)]