21561400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{15401}}^1$

素因数の和:15424

約数の個数: 48

約数和(自身を含む): 57295440

約数和(自身を除く): 35734040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 700, 1400, 15401, 30802, 61604, 77005, 107807, 123208, 154010, 215614, 308020, 385025, 431228, 539035, 616040, 770050, 862456, 1078070, 1540100, 2156140, 2695175, 3080200, 4312280, 5390350, 10780700, 21561400]

約数ペア:

[(1, 21561400), (2, 10780700), (4, 5390350), (5, 4312280), (7, 3080200), (8, 2695175), (10, 2156140), (14, 1540100), (20, 1078070), (25, 862456), (28, 770050), (35, 616040), (40, 539035), (50, 431228), (56, 385025), (70, 308020), (100, 215614), (140, 154010), (175, 123208), (200, 107807), (280, 77005), (350, 61604), (700, 30802), (1400, 15401)]