21918969

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{311}}^1$

素因数の和:549

約数の個数: 24

約数和(自身を含む): 32707584

約数和(自身を除く): 10788615

約数列:

[1, 3, 9, 41, 123, 191, 311, 369, 573, 933, 1719, 2799, 7831, 12751, 23493, 38253, 59401, 70479, 114759, 178203, 534609, 2435441, 7306323, 21918969]

約数ペア:

[(1, 21918969), (3, 7306323), (9, 2435441), (41, 534609), (123, 178203), (191, 114759), (311, 70479), (369, 59401), (573, 38253), (933, 23493), (1719, 12751), (2799, 7831)]