81867177

素因数分解:

$3^2\times 7^1\times {\mathrm{1129}}^1\times {\mathrm{1151}}^1$

素因数の和:2293

約数の個数: 24

約数和(自身を含む): 135383040

約数和(自身を除く): 53515863

約数列:

[1, 3, 7, 9, 21, 63, 1129, 1151, 3387, 3453, 7903, 8057, 10161, 10359, 23709, 24171, 71127, 72513, 1299479, 3898437, 9096353, 11695311, 27289059, 81867177]

約数ペア:

[(1, 81867177), (3, 27289059), (7, 11695311), (9, 9096353), (21, 3898437), (63, 1299479), (1129, 72513), (1151, 71127), (3387, 24171), (3453, 23709), (7903, 10359), (8057, 10161)]