20526149

素因数分解:

$7^4\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:214

約数の個数: 20

約数和(自身を含む): 24469536

約数和(自身を除く): 3943387

約数列:

[1, 7, 49, 83, 103, 343, 581, 721, 2401, 4067, 5047, 8549, 28469, 35329, 59843, 199283, 247303, 418901, 2932307, 20526149]

約数ペア:

[(1, 20526149), (7, 2932307), (49, 418901), (83, 247303), (103, 199283), (343, 59843), (581, 35329), (721, 28469), (2401, 8549), (4067, 5047)]