21256846

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{79}}^2\times {\mathrm{131}}^1$

素因数の和:304

約数の個数: 24

約数和(自身を含む): 35043624

約数和(自身を除く): 13786778

約数列:

[1, 2, 13, 26, 79, 131, 158, 262, 1027, 1703, 2054, 3406, 6241, 10349, 12482, 20698, 81133, 134537, 162266, 269074, 817571, 1635142, 10628423, 21256846]

約数ペア:

[(1, 21256846), (2, 10628423), (13, 1635142), (26, 817571), (79, 269074), (131, 162266), (158, 134537), (262, 81133), (1027, 20698), (1703, 12482), (2054, 10349), (3406, 6241)]