242138889

素因数分解:

$3^4\times {\mathrm{103}}^1\times {\mathrm{29023}}^1$

素因数の和:29138

約数の個数: 20

約数和(自身を含む): 365238016

約数和(自身を除く): 123099127

約数列:

[1, 3, 9, 27, 81, 103, 309, 927, 2781, 8343, 29023, 87069, 261207, 783621, 2350863, 2989369, 8968107, 26904321, 80712963, 242138889]

約数ペア:

[(1, 242138889), (3, 80712963), (9, 26904321), (27, 8968107), (81, 2989369), (103, 2350863), (309, 783621), (927, 261207), (2781, 87069), (8343, 29023)]