251017011

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{137393}}^1$

素因数の和:137435

約数の個数: 24

約数和(自身を含む): 428669280

約数和(自身を除く): 177652269

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 137393, 412179, 961751, 1236537, 2885253, 3984397, 8655759, 11953191, 27890779, 35859573, 83672337, 251017011]

約数ペア:

[(1, 251017011), (3, 83672337), (7, 35859573), (9, 27890779), (21, 11953191), (29, 8655759), (63, 3984397), (87, 2885253), (203, 1236537), (261, 961751), (609, 412179), (1827, 137393)]