20659877

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{233}}^1\times {\mathrm{239}}^1$

素因数の和:532

約数の個数: 16

約数和(自身を含む): 24261120

約数和(自身を除く): 3601243

約数列:

[1, 7, 53, 233, 239, 371, 1631, 1673, 12349, 12667, 55687, 86443, 88669, 389809, 2951411, 20659877]

約数ペア:

[(1, 20659877), (7, 2951411), (53, 389809), (233, 88669), (239, 86443), (371, 55687), (1631, 12667), (1673, 12349)]