207942889

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:445

約数の個数: 32

約数和(自身を含む): 265015296

約数和(自身を除く): 57072407

約数列:

[1, 7, 11, 77, 103, 157, 167, 721, 1099, 1133, 1169, 1727, 1837, 7931, 12089, 12859, 16171, 17201, 26219, 113197, 120407, 177881, 183533, 189211, 288409, 1245167, 1324477, 2018863, 2700557, 18903899, 29706127, 207942889]

約数ペア:

[(1, 207942889), (7, 29706127), (11, 18903899), (77, 2700557), (103, 2018863), (157, 1324477), (167, 1245167), (721, 288409), (1099, 189211), (1133, 183533), (1169, 177881), (1727, 120407), (1837, 113197), (7931, 26219), (12089, 17201), (12859, 16171)]