20425518

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{479}}^1$

素因数の和:613

約数の個数: 48

約数和(自身を含む): 46725120

約数和(自身を除く): 26299602

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 103, 138, 206, 207, 309, 414, 479, 618, 927, 958, 1437, 1854, 2369, 2874, 4311, 4738, 7107, 8622, 11017, 14214, 21321, 22034, 33051, 42642, 49337, 66102, 98674, 99153, 148011, 198306, 296022, 444033, 888066, 1134751, 2269502, 3404253, 6808506, 10212759, 20425518]

約数ペア:

[(1, 20425518), (2, 10212759), (3, 6808506), (6, 3404253), (9, 2269502), (18, 1134751), (23, 888066), (46, 444033), (69, 296022), (103, 198306), (138, 148011), (206, 99153), (207, 98674), (309, 66102), (414, 49337), (479, 42642), (618, 33051), (927, 22034), (958, 21321), (1437, 14214), (1854, 11017), (2369, 8622), (2874, 7107), (4311, 4738)]