393988721

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{17377}}^1$

素因数の和:17504

約数の個数: 16

約数和(自身を含む): 467120640

約数和(自身を除く): 73131919

約数列:

[1, 7, 41, 79, 287, 553, 3239, 17377, 22673, 121639, 712457, 1372783, 4987199, 9609481, 56284103, 393988721]

約数ペア:

[(1, 393988721), (7, 56284103), (41, 9609481), (79, 4987199), (287, 1372783), (553, 712457), (3239, 121639), (17377, 22673)]