17981397

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{4679}}^1$

素因数の和:4753

約数の個数: 24

約数和(自身を含む): 30176640

約数和(自身を除く): 12195243

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 4679, 14037, 32753, 42111, 98259, 285419, 294777, 856257, 1997933, 2568771, 5993799, 17981397]

約数ペア:

[(1, 17981397), (3, 5993799), (7, 2568771), (9, 1997933), (21, 856257), (61, 294777), (63, 285419), (183, 98259), (427, 42111), (549, 32753), (1281, 14037), (3843, 4679)]