81965356

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{821}}^1\times {\mathrm{2269}}^1$

素因数の和:3105

約数の個数: 24

約数和(自身を含む): 156738960

約数和(自身を除く): 74773604

約数列:

[1, 2, 4, 11, 22, 44, 821, 1642, 2269, 3284, 4538, 9031, 9076, 18062, 24959, 36124, 49918, 99836, 1862849, 3725698, 7451396, 20491339, 40982678, 81965356]

約数ペア:

[(1, 81965356), (2, 40982678), (4, 20491339), (11, 7451396), (22, 3725698), (44, 1862849), (821, 99836), (1642, 49918), (2269, 36124), (3284, 24959), (4538, 18062), (9031, 9076)]