28702978109

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{129877729}}^1$

素因数の和:129877759

約数の個数: 8

約数和(自身を含む): 32729187960

約数和(自身を除く): 4026209851

約数列:

[1, 13, 17, 221, 129877729, 1688410477, 2207921393, 28702978109]

約数ペア:

[(1, 28702978109), (13, 2207921393), (17, 1688410477), (221, 129877729)]