81679311

素因数分解:

$3^2\times 7^1\times {\mathrm{179}}^1\times {\mathrm{7243}}^1$

素因数の和:7435

約数の個数: 24

約数和(自身を含む): 135607680

約数和(自身を除く): 53928369

約数列:

[1, 3, 7, 9, 21, 63, 179, 537, 1253, 1611, 3759, 7243, 11277, 21729, 50701, 65187, 152103, 456309, 1296497, 3889491, 9075479, 11668473, 27226437, 81679311]

約数ペア:

[(1, 81679311), (3, 27226437), (7, 11668473), (9, 9075479), (21, 3889491), (63, 1296497), (179, 456309), (537, 152103), (1253, 65187), (1611, 50701), (3759, 21729), (7243, 11277)]