18936967

素因数分解:

$7^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1\times {\mathrm{193}}^1$

素因数の和:438

約数の個数: 16

約数和(自身を含む): 22125312

約数和(自身を除く): 3188345

約数列:

[1, 7, 107, 131, 193, 749, 917, 1351, 14017, 20651, 25283, 98119, 144557, 176981, 2705281, 18936967]

約数ペア:

[(1, 18936967), (7, 2705281), (107, 176981), (131, 144557), (193, 98119), (749, 25283), (917, 20651), (1351, 14017)]