21306054

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{431}}^1$

素因数の和:561

約数の個数: 64

約数和(自身を含む): 53747712

約数和(自身を除く): 32441658

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 107, 154, 214, 231, 321, 431, 462, 642, 749, 862, 1177, 1293, 1498, 2247, 2354, 2586, 3017, 3531, 4494, 4741, 6034, 7062, 8239, 9051, 9482, 14223, 16478, 18102, 24717, 28446, 33187, 46117, 49434, 66374, 92234, 99561, 138351, 199122, 276702, 322819, 507287, 645638, 968457, 1014574, 1521861, 1936914, 3043722, 3551009, 7102018, 10653027, 21306054]

約数ペア:

[(1, 21306054), (2, 10653027), (3, 7102018), (6, 3551009), (7, 3043722), (11, 1936914), (14, 1521861), (21, 1014574), (22, 968457), (33, 645638), (42, 507287), (66, 322819), (77, 276702), (107, 199122), (154, 138351), (214, 99561), (231, 92234), (321, 66374), (431, 49434), (462, 46117), (642, 33187), (749, 28446), (862, 24717), (1177, 18102), (1293, 16478), (1498, 14223), (2247, 9482), (2354, 9051), (2586, 8239), (3017, 7062), (3531, 6034), (4494, 4741)]