20577256

素因数分解:

$2^3\times 7^3\times {\mathrm{7499}}^1$

素因数の和:7526

約数の個数: 32

約数和(自身を含む): 45000000

約数和(自身を除く): 24422744

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 686, 1372, 2744, 7499, 14998, 29996, 52493, 59992, 104986, 209972, 367451, 419944, 734902, 1469804, 2572157, 2939608, 5144314, 10288628, 20577256]

約数ペア:

[(1, 20577256), (2, 10288628), (4, 5144314), (7, 2939608), (8, 2572157), (14, 1469804), (28, 734902), (49, 419944), (56, 367451), (98, 209972), (196, 104986), (343, 59992), (392, 52493), (686, 29996), (1372, 14998), (2744, 7499)]