20916351

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1229}}^1$

素因数の和:1327

約数の個数: 24

約数和(自身を含む): 31724160

約数和(自身を除く): 10807809

約数列:

[1, 3, 9, 31, 61, 93, 183, 279, 549, 1229, 1891, 3687, 5673, 11061, 17019, 38099, 74969, 114297, 224907, 342891, 674721, 2324039, 6972117, 20916351]

約数ペア:

[(1, 20916351), (3, 6972117), (9, 2324039), (31, 674721), (61, 342891), (93, 224907), (183, 114297), (279, 74969), (549, 38099), (1229, 17019), (1891, 11061), (3687, 5673)]