21101165

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{1523}}^1$

素因数の和:1708

約数の個数: 16

約数和(自身を含む): 26993088

約数和(自身を除く): 5891923

約数列:

[1, 5, 17, 85, 163, 815, 1523, 2771, 7615, 13855, 25891, 129455, 248249, 1241245, 4220233, 21101165]

約数ペア:

[(1, 21101165), (5, 4220233), (17, 1241245), (85, 248249), (163, 129455), (815, 25891), (1523, 13855), (2771, 7615)]