208193797

素因数分解:

$7^3\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:278

約数の個数: 32

約数和(自身を含む): 251596800

約数和(自身を除く): 43403003

約数列:

[1, 7, 49, 71, 83, 103, 343, 497, 581, 721, 3479, 4067, 5047, 5893, 7313, 8549, 24353, 28469, 35329, 41251, 51191, 59843, 288757, 358337, 418901, 606979, 2021299, 2508359, 2932307, 4248853, 29741971, 208193797]

約数ペア:

[(1, 208193797), (7, 29741971), (49, 4248853), (71, 2932307), (83, 2508359), (103, 2021299), (343, 606979), (497, 418901), (581, 358337), (721, 288757), (3479, 59843), (4067, 51191), (5047, 41251), (5893, 35329), (7313, 28469), (8549, 24353)]