18881145

素因数分解:

$3^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{1741}}^1$

素因数の和:1993

約数の個数: 24

約数和(自身を含む): 32881992

約数和(自身を除く): 14000847

約数列:

[1, 3, 5, 9, 15, 45, 241, 723, 1205, 1741, 2169, 3615, 5223, 8705, 10845, 15669, 26115, 78345, 419581, 1258743, 2097905, 3776229, 6293715, 18881145]

約数ペア:

[(1, 18881145), (3, 6293715), (5, 3776229), (9, 2097905), (15, 1258743), (45, 419581), (241, 78345), (723, 26115), (1205, 15669), (1741, 10845), (2169, 8705), (3615, 5223)]