81951737

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{521}}^1\times {\mathrm{977}}^1$

素因数の和:1528

約数の個数: 16

約数和(自身を含む): 98019072

約数和(自身を除く): 16067335

約数列:

[1, 7, 23, 161, 521, 977, 3647, 6839, 11983, 22471, 83881, 157297, 509017, 3563119, 11707391, 81951737]

約数ペア:

[(1, 81951737), (7, 11707391), (23, 3563119), (161, 509017), (521, 157297), (977, 83881), (3647, 22471), (6839, 11983)]