21051448

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:232

約数の個数: 64

約数和(自身を含む): 45554400

約数和(自身を除く): 24502952

約数列:

[1, 2, 4, 8, 11, 22, 29, 44, 58, 73, 88, 113, 116, 146, 226, 232, 292, 319, 452, 584, 638, 803, 904, 1243, 1276, 1606, 2117, 2486, 2552, 3212, 3277, 4234, 4972, 6424, 6554, 8249, 8468, 9944, 13108, 16498, 16936, 23287, 26216, 32996, 36047, 46574, 65992, 72094, 90739, 93148, 144188, 181478, 186296, 239221, 288376, 362956, 478442, 725912, 956884, 1913768, 2631431, 5262862, 10525724, 21051448]

約数ペア:

[(1, 21051448), (2, 10525724), (4, 5262862), (8, 2631431), (11, 1913768), (22, 956884), (29, 725912), (44, 478442), (58, 362956), (73, 288376), (88, 239221), (113, 186296), (116, 181478), (146, 144188), (226, 93148), (232, 90739), (292, 72094), (319, 65992), (452, 46574), (584, 36047), (638, 32996), (803, 26216), (904, 23287), (1243, 16936), (1276, 16498), (1606, 13108), (2117, 9944), (2486, 8468), (2552, 8249), (3212, 6554), (3277, 6424), (4234, 4972)]