21739520

素因数分解:

$2^{11}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{193}}^1$

素因数の和:231

約数の個数: 96

約数和(自身を含む): 57198960

約数和(自身を除く): 35459440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 193, 220, 256, 320, 352, 386, 440, 512, 640, 704, 772, 880, 965, 1024, 1280, 1408, 1544, 1760, 1930, 2048, 2123, 2560, 2816, 3088, 3520, 3860, 4246, 5120, 5632, 6176, 7040, 7720, 8492, 10240, 10615, 11264, 12352, 14080, 15440, 16984, 21230, 22528, 24704, 28160, 30880, 33968, 42460, 49408, 56320, 61760, 67936, 84920, 98816, 112640, 123520, 135872, 169840, 197632, 247040, 271744, 339680, 395264, 494080, 543488, 679360, 988160, 1086976, 1358720, 1976320, 2173952, 2717440, 4347904, 5434880, 10869760, 21739520]

約数ペア:

[(1, 21739520), (2, 10869760), (4, 5434880), (5, 4347904), (8, 2717440), (10, 2173952), (11, 1976320), (16, 1358720), (20, 1086976), (22, 988160), (32, 679360), (40, 543488), (44, 494080), (55, 395264), (64, 339680), (80, 271744), (88, 247040), (110, 197632), (128, 169840), (160, 135872), (176, 123520), (193, 112640), (220, 98816), (256, 84920), (320, 67936), (352, 61760), (386, 56320), (440, 49408), (512, 42460), (640, 33968), (704, 30880), (772, 28160), (880, 24704), (965, 22528), (1024, 21230), (1280, 16984), (1408, 15440), (1544, 14080), (1760, 12352), (1930, 11264), (2048, 10615), (2123, 10240), (2560, 8492), (2816, 7720), (3088, 7040), (3520, 6176), (3860, 5632), (4246, 5120)]