20875316

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67777}}^1$

素因数の和:67799

約数の個数: 24

約数和(自身を含む): 45546816

約数和(自身を除く): 24671500

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 67777, 135554, 271108, 474439, 745547, 948878, 1491094, 1897756, 2982188, 5218829, 10437658, 20875316]

約数ペア:

[(1, 20875316), (2, 10437658), (4, 5218829), (7, 2982188), (11, 1897756), (14, 1491094), (22, 948878), (28, 745547), (44, 474439), (77, 271108), (154, 135554), (308, 67777)]