18008505

素因数分解:

$3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{2011}}^1$

素因数の和:2221

約数の個数: 24

約数和(自身を含む): 31387200

約数和(自身を除く): 13378695

約数列:

[1, 3, 5, 9, 15, 45, 199, 597, 995, 1791, 2011, 2985, 6033, 8955, 10055, 18099, 30165, 90495, 400189, 1200567, 2000945, 3601701, 6002835, 18008505]

約数ペア:

[(1, 18008505), (3, 6002835), (5, 3601701), (9, 2000945), (15, 1200567), (45, 400189), (199, 90495), (597, 30165), (995, 18099), (1791, 10055), (2011, 8955), (2985, 6033)]