20777127

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 34911360

約数和(自身を除く): 14134233

約数列:

[1, 3, 7, 19, 21, 43, 49, 57, 129, 133, 147, 173, 301, 399, 519, 817, 903, 931, 1211, 2107, 2451, 2793, 3287, 3633, 5719, 6321, 7439, 8477, 9861, 17157, 22317, 23009, 25431, 40033, 52073, 69027, 120099, 141341, 156219, 161063, 364511, 424023, 483189, 989387, 1093533, 2968161, 6925709, 20777127]

約数ペア:

[(1, 20777127), (3, 6925709), (7, 2968161), (19, 1093533), (21, 989387), (43, 483189), (49, 424023), (57, 364511), (129, 161063), (133, 156219), (147, 141341), (173, 120099), (301, 69027), (399, 52073), (519, 40033), (817, 25431), (903, 23009), (931, 22317), (1211, 17157), (2107, 9861), (2451, 8477), (2793, 7439), (3287, 6321), (3633, 5719)]