13840389

素因数分解:

$3^4\times {\mathrm{241}}^1\times {\mathrm{709}}^1$

素因数の和:962

約数の個数: 20

約数和(自身を含む): 20790220

約数和(自身を除く): 6949831

約数列:

[1, 3, 9, 27, 81, 241, 709, 723, 2127, 2169, 6381, 6507, 19143, 19521, 57429, 170869, 512607, 1537821, 4613463, 13840389]

約数ペア:

[(1, 13840389), (3, 4613463), (9, 1537821), (27, 512607), (81, 170869), (241, 57429), (709, 19521), (723, 19143), (2127, 6507), (2169, 6381)]