71809731

素因数分解:

$3^2\times 7^1\times {\mathrm{353}}^1\times {\mathrm{3229}}^1$

素因数の和:3595

約数の個数: 24

約数和(自身を含む): 118915680

約数和(自身を除く): 47105949

約数列:

[1, 3, 7, 9, 21, 63, 353, 1059, 2471, 3177, 3229, 7413, 9687, 22239, 22603, 29061, 67809, 203427, 1139837, 3419511, 7978859, 10258533, 23936577, 71809731]

約数ペア:

[(1, 71809731), (3, 23936577), (7, 10258533), (9, 7978859), (21, 3419511), (63, 1139837), (353, 203427), (1059, 67809), (2471, 29061), (3177, 22603), (3229, 22239), (7413, 9687)]