21369656

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{307}}^1$

素因数の和:444

約数の個数: 64

約数和(自身を含む): 50561280

約数和(自身を除く): 29191624

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 113, 154, 226, 307, 308, 452, 614, 616, 791, 904, 1228, 1243, 1582, 2149, 2456, 2486, 3164, 3377, 4298, 4972, 6328, 6754, 8596, 8701, 9944, 13508, 17192, 17402, 23639, 27016, 34691, 34804, 47278, 69382, 69608, 94556, 138764, 189112, 242837, 277528, 381601, 485674, 763202, 971348, 1526404, 1942696, 2671207, 3052808, 5342414, 10684828, 21369656]

約数ペア:

[(1, 21369656), (2, 10684828), (4, 5342414), (7, 3052808), (8, 2671207), (11, 1942696), (14, 1526404), (22, 971348), (28, 763202), (44, 485674), (56, 381601), (77, 277528), (88, 242837), (113, 189112), (154, 138764), (226, 94556), (307, 69608), (308, 69382), (452, 47278), (614, 34804), (616, 34691), (791, 27016), (904, 23639), (1228, 17402), (1243, 17192), (1582, 13508), (2149, 9944), (2456, 8701), (2486, 8596), (3164, 6754), (3377, 6328), (4298, 4972)]