9721521

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{409}}^1$

素因数の和:573

約数の個数: 24

約数和(自身を含む): 14924000

約数和(自身を除く): 5202479

約数列:

[1, 3, 9, 19, 57, 139, 171, 409, 417, 1227, 1251, 2641, 3681, 7771, 7923, 23313, 23769, 56851, 69939, 170553, 511659, 1080169, 3240507, 9721521]

約数ペア:

[(1, 9721521), (3, 3240507), (9, 1080169), (19, 511659), (57, 170553), (139, 69939), (171, 56851), (409, 23769), (417, 23313), (1227, 7923), (1251, 7771), (2641, 3681)]