21116511

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{60161}}^1$

素因数の和:60183

約数の個数: 16

約数和(自身を含む): 33690720

約数和(自身を除く): 12574209

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 60161, 180483, 541449, 782093, 1624347, 2346279, 7038837, 21116511]

約数ペア:

[(1, 21116511), (3, 7038837), (9, 2346279), (13, 1624347), (27, 782093), (39, 541449), (117, 180483), (351, 60161)]