721569121

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{1549}}^1\times {\mathrm{5119}}^1$

素因数の和:6688

約数の個数: 16

約数和(自身を含む): 888832000

約数和(自身を除く): 167262879

約数列:

[1, 7, 13, 91, 1549, 5119, 10843, 20137, 35833, 66547, 140959, 465829, 7929331, 55505317, 103081303, 721569121]

約数ペア:

[(1, 721569121), (7, 103081303), (13, 55505317), (91, 7929331), (1549, 465829), (5119, 140959), (10843, 66547), (20137, 35833)]