71287909

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{521}}^1\times {\mathrm{1777}}^1$

素因数の和:2316

約数の個数: 16

約数和(自身を含む): 89099136

約数和(自身を除く): 17811227

約数列:

[1, 7, 11, 77, 521, 1777, 3647, 5731, 12439, 19547, 40117, 136829, 925817, 6480719, 10183987, 71287909]

約数ペア:

[(1, 71287909), (7, 10183987), (11, 6480719), (77, 925817), (521, 136829), (1777, 40117), (3647, 19547), (5731, 12439)]