20449198

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1$

素因数の和:217

約数の個数: 64

約数和(自身を含む): 41430528

約数和(自身を除く): 20981330

約数列:

[1, 2, 7, 11, 14, 17, 22, 34, 73, 77, 107, 119, 146, 154, 187, 214, 238, 374, 511, 749, 803, 1022, 1177, 1241, 1309, 1498, 1606, 1819, 2354, 2482, 2618, 3638, 5621, 7811, 8239, 8687, 11242, 12733, 13651, 15622, 16478, 17374, 20009, 25466, 27302, 40018, 54677, 85921, 95557, 109354, 132787, 140063, 171842, 191114, 265574, 280126, 601447, 929509, 1202894, 1460657, 1859018, 2921314, 10224599, 20449198]

約数ペア:

[(1, 20449198), (2, 10224599), (7, 2921314), (11, 1859018), (14, 1460657), (17, 1202894), (22, 929509), (34, 601447), (73, 280126), (77, 265574), (107, 191114), (119, 171842), (146, 140063), (154, 132787), (187, 109354), (214, 95557), (238, 85921), (374, 54677), (511, 40018), (749, 27302), (803, 25466), (1022, 20009), (1177, 17374), (1241, 16478), (1309, 15622), (1498, 13651), (1606, 12733), (1819, 11242), (2354, 8687), (2482, 8239), (2618, 7811), (3638, 5621)]