21054040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{75193}}^1$

素因数の和:75211

約数の個数: 32

約数和(自身を含む): 54139680

約数和(自身を除く): 33085640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 75193, 150386, 300772, 375965, 526351, 601544, 751930, 1052702, 1503860, 2105404, 2631755, 3007720, 4210808, 5263510, 10527020, 21054040]

約数ペア:

[(1, 21054040), (2, 10527020), (4, 5263510), (5, 4210808), (7, 3007720), (8, 2631755), (10, 2105404), (14, 1503860), (20, 1052702), (28, 751930), (35, 601544), (40, 526351), (56, 375965), (70, 300772), (140, 150386), (280, 75193)]