18901389

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{2011}}^1$

素因数の和:2268

約数の個数: 16

約数和(自身を含む): 27266624

約数和(自身を除く): 8365235

約数列:

[1, 3, 13, 39, 241, 723, 2011, 3133, 6033, 9399, 26143, 78429, 484651, 1453953, 6300463, 18901389]

約数ペア:

[(1, 18901389), (3, 6300463), (13, 1453953), (39, 484651), (241, 78429), (723, 26143), (2011, 9399), (3133, 6033)]