81287866

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{277}}^1\times {\mathrm{13339}}^1$

素因数の和:13629

約数の個数: 16

約数和(自身を含む): 133506720

約数和(自身を除く): 52218854

約数列:

[1, 2, 11, 22, 277, 554, 3047, 6094, 13339, 26678, 146729, 293458, 3694903, 7389806, 40643933, 81287866]

約数ペア:

[(1, 81287866), (2, 40643933), (11, 7389806), (22, 3694903), (277, 293458), (554, 146729), (3047, 26678), (6094, 13339)]