405236439

素因数分解:

$3^4\times {\mathrm{241}}^1\times {\mathrm{20759}}^1$

素因数の和:21012

約数の個数: 20

約数和(自身を含む): 607894320

約数和(自身を除く): 202657881

約数列:

[1, 3, 9, 27, 81, 241, 723, 2169, 6507, 19521, 20759, 62277, 186831, 560493, 1681479, 5002919, 15008757, 45026271, 135078813, 405236439]

約数ペア:

[(1, 405236439), (3, 135078813), (9, 45026271), (27, 15008757), (81, 5002919), (241, 1681479), (723, 560493), (2169, 186831), (6507, 62277), (19521, 20759)]