18236621

素因数分解:

${\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{61}}^2$

素因数の和:177

約数の個数: 18

約数和(自身を含む): 20768670

約数和(自身を除く): 2532049

約数列:

[1, 13, 29, 61, 169, 377, 793, 1769, 3721, 4901, 10309, 22997, 48373, 107909, 298961, 628849, 1402817, 18236621]

約数ペア:

[(1, 18236621), (13, 1402817), (29, 628849), (61, 298961), (169, 107909), (377, 48373), (793, 22997), (1769, 10309), (3721, 4901)]