21259566

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{28807}}^1$

素因数の和:28856

約数の個数: 24

約数和(自身を含む): 47187504

約数和(自身を除く): 25927938

約数列:

[1, 2, 3, 6, 9, 18, 41, 82, 123, 246, 369, 738, 28807, 57614, 86421, 172842, 259263, 518526, 1181087, 2362174, 3543261, 7086522, 10629783, 21259566]

約数ペア:

[(1, 21259566), (2, 10629783), (3, 7086522), (6, 3543261), (9, 2362174), (18, 1181087), (41, 518526), (82, 259263), (123, 172842), (246, 86421), (369, 57614), (738, 28807)]