21931819

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{14177}}^1$

素因数の和:14214

約数の個数: 16

約数和(自身を含む): 28582848

約数和(自身を除く): 6651029

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 14177, 99239, 184301, 241009, 1290107, 1687063, 3133117, 21931819]

約数ペア:

[(1, 21931819), (7, 3133117), (13, 1687063), (17, 1290107), (91, 241009), (119, 184301), (221, 99239), (1547, 14177)]