19705651

素因数分解:

$7^1\times {\mathrm{103}}^1\times {\mathrm{151}}^1\times {\mathrm{181}}^1$

素因数の和:442

約数の個数: 16

約数和(自身を含む): 23016448

約数和(自身を除く): 3310797

約数列:

[1, 7, 103, 151, 181, 721, 1057, 1267, 15553, 18643, 27331, 108871, 130501, 191317, 2815093, 19705651]

約数ペア:

[(1, 19705651), (7, 2815093), (103, 191317), (151, 130501), (181, 108871), (721, 27331), (1057, 18643), (1267, 15553)]