20409774

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{6311}}^1$

素因数の和:6341

約数の個数: 48

約数和(自身を含む): 51808896

約数和(自身を除く): 31399122

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 49, 66, 77, 98, 147, 154, 231, 294, 462, 539, 1078, 1617, 3234, 6311, 12622, 18933, 37866, 44177, 69421, 88354, 132531, 138842, 208263, 265062, 309239, 416526, 485947, 618478, 927717, 971894, 1457841, 1855434, 2915682, 3401629, 6803258, 10204887, 20409774]

約数ペア:

[(1, 20409774), (2, 10204887), (3, 6803258), (6, 3401629), (7, 2915682), (11, 1855434), (14, 1457841), (21, 971894), (22, 927717), (33, 618478), (42, 485947), (49, 416526), (66, 309239), (77, 265062), (98, 208263), (147, 138842), (154, 132531), (231, 88354), (294, 69421), (462, 44177), (539, 37866), (1078, 18933), (1617, 12622), (3234, 6311)]