261459

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:175

約数の個数: 24

約数和(自身を含む): 436800

約数和(自身を除く): 175341

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 139, 171, 209, 417, 627, 1251, 1529, 1881, 2641, 4587, 7923, 13761, 23769, 29051, 87153, 261459]

約数ペア:

[(1, 261459), (3, 87153), (9, 29051), (11, 23769), (19, 13761), (33, 7923), (57, 4587), (99, 2641), (139, 1881), (171, 1529), (209, 1251), (417, 627)]