18657189

素因数分解:

$3^3\times {\mathrm{127}}^1\times {\mathrm{5441}}^1$

素因数の和:5577

約数の個数: 16

約数和(自身を含む): 27863040

約数和(自身を除く): 9205851

約数列:

[1, 3, 9, 27, 127, 381, 1143, 3429, 5441, 16323, 48969, 146907, 691007, 2073021, 6219063, 18657189]

約数ペア:

[(1, 18657189), (3, 6219063), (9, 2073021), (27, 691007), (127, 146907), (381, 48969), (1143, 16323), (3429, 5441)]