20450738

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:399

約数の個数: 48

約数和(自身を含む): 39693888

約数和(自身を除く): 19243150

約数列:

[1, 2, 7, 11, 14, 22, 49, 61, 77, 98, 122, 154, 311, 427, 539, 622, 671, 854, 1078, 1342, 2177, 2989, 3421, 4354, 4697, 5978, 6842, 9394, 15239, 18971, 23947, 30478, 32879, 37942, 47894, 65758, 132797, 167629, 208681, 265594, 335258, 417362, 929579, 1460767, 1859158, 2921534, 10225369, 20450738]

約数ペア:

[(1, 20450738), (2, 10225369), (7, 2921534), (11, 1859158), (14, 1460767), (22, 929579), (49, 417362), (61, 335258), (77, 265594), (98, 208681), (122, 167629), (154, 132797), (311, 65758), (427, 47894), (539, 37942), (622, 32879), (671, 30478), (854, 23947), (1078, 18971), (1342, 15239), (2177, 9394), (2989, 6842), (3421, 5978), (4354, 4697)]