18706719

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{1327}}^1$

素因数の和:1494

約数の個数: 16

約数和(自身を含む): 25837568

約数和(自身を除く): 7130849

約数列:

[1, 3, 37, 111, 127, 381, 1327, 3981, 4699, 14097, 49099, 147297, 168529, 505587, 6235573, 18706719]

約数ペア:

[(1, 18706719), (3, 6235573), (37, 505587), (111, 168529), (127, 147297), (381, 49099), (1327, 14097), (3981, 4699)]