257492078991

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{39681319}}^1$

素因数の和:39681435

約数の個数: 24

約数和(自身を含む): 429193157120

約数和(自身を除く): 171701078129

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, 6489, 39681319, 119043957, 277769233, 357131871, 833307699, 2499923097, 4087175857, 12261527571, 28610230999, 36784582713, 85830692997, 257492078991]

約数ペア:

[(1, 257492078991), (3, 85830692997), (7, 36784582713), (9, 28610230999), (21, 12261527571), (63, 4087175857), (103, 2499923097), (309, 833307699), (721, 357131871), (927, 277769233), (2163, 119043957), (6489, 39681319)]