21156138

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{40529}}^1$

素因数の和:40566

約数の個数: 24

約数和(自身を含む): 47420100

約数和(自身を除く): 26263962

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 87, 174, 261, 522, 40529, 81058, 121587, 243174, 364761, 729522, 1175341, 2350682, 3526023, 7052046, 10578069, 21156138]

約数ペア:

[(1, 21156138), (2, 10578069), (3, 7052046), (6, 3526023), (9, 2350682), (18, 1175341), (29, 729522), (58, 364761), (87, 243174), (174, 121587), (261, 81058), (522, 40529)]