18419805

素因数分解:

$3^4\times 5^1\times {\mathrm{45481}}^1$

素因数の和:45498

約数の個数: 20

約数和(自身を含む): 33019932

約数和(自身を除く): 14600127

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 45481, 136443, 227405, 409329, 682215, 1227987, 2046645, 3683961, 6139935, 18419805]

約数ペア:

[(1, 18419805), (3, 6139935), (5, 3683961), (9, 2046645), (15, 1227987), (27, 682215), (45, 409329), (81, 227405), (135, 136443), (405, 45481)]