890992809

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{328901}}^1$

素因数の和:328957

約数の個数: 24

約数和(自身を含む): 1505055552

約数和(自身を除く): 614062743

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 328901, 986703, 2302307, 2960109, 6906921, 14142743, 20720763, 42428229, 98999201, 127284687, 296997603, 890992809]

約数ペア:

[(1, 890992809), (3, 296997603), (7, 127284687), (9, 98999201), (21, 42428229), (43, 20720763), (63, 14142743), (129, 6906921), (301, 2960109), (387, 2302307), (903, 986703), (2709, 328901)]