21691468

素因数分解:

$2^2\times {\mathrm{59}}^1\times {\mathrm{107}}^1\times {\mathrm{859}}^1$

素因数の和:1029

約数の個数: 24

約数和(自身を含む): 39009600

約数和(自身を除く): 17318132

約数列:

[1, 2, 4, 59, 107, 118, 214, 236, 428, 859, 1718, 3436, 6313, 12626, 25252, 50681, 91913, 101362, 183826, 202724, 367652, 5422867, 10845734, 21691468]

約数ペア:

[(1, 21691468), (2, 10845734), (4, 5422867), (59, 367652), (107, 202724), (118, 183826), (214, 101362), (236, 91913), (428, 50681), (859, 25252), (1718, 12626), (3436, 6313)]