18381087

素因数分解:

$3^4\times {\mathrm{149}}^1\times {\mathrm{1523}}^1$

素因数の和:1684

約数の個数: 20

約数和(自身を含む): 27660600

約数和(自身を除く): 9279513

約数列:

[1, 3, 9, 27, 81, 149, 447, 1341, 1523, 4023, 4569, 12069, 13707, 41121, 123363, 226927, 680781, 2042343, 6127029, 18381087]

約数ペア:

[(1, 18381087), (3, 6127029), (9, 2042343), (27, 680781), (81, 226927), (149, 123363), (447, 41121), (1341, 13707), (1523, 12069), (4023, 4569)]