20551188

素因数分解:

$2^2\times 3^1\times 7^3\times {\mathrm{4993}}^1$

素因数の和:5021

約数の個数: 48

約数和(自身を含む): 55932800

約数和(自身を除く): 35381612

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 343, 588, 686, 1029, 1372, 2058, 4116, 4993, 9986, 14979, 19972, 29958, 34951, 59916, 69902, 104853, 139804, 209706, 244657, 419412, 489314, 733971, 978628, 1467942, 1712599, 2935884, 3425198, 5137797, 6850396, 10275594, 20551188]

約数ペア:

[(1, 20551188), (2, 10275594), (3, 6850396), (4, 5137797), (6, 3425198), (7, 2935884), (12, 1712599), (14, 1467942), (21, 978628), (28, 733971), (42, 489314), (49, 419412), (84, 244657), (98, 209706), (147, 139804), (196, 104853), (294, 69902), (343, 59916), (588, 34951), (686, 29958), (1029, 19972), (1372, 14979), (2058, 9986), (4116, 4993)]