18854721

素因数分解:

$3^3\times {\mathrm{397}}^1\times {\mathrm{1759}}^1$

素因数の和:2165

約数の個数: 16

約数和(自身を含む): 28019200

約数和(自身を除く): 9164479

約数列:

[1, 3, 9, 27, 397, 1191, 1759, 3573, 5277, 10719, 15831, 47493, 698323, 2094969, 6284907, 18854721]

約数ペア:

[(1, 18854721), (3, 6284907), (9, 2094969), (27, 698323), (397, 47493), (1191, 15831), (1759, 10719), (3573, 5277)]