21543312

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{661}}^1$

素因数の和:776

約数の個数: 80

約数和(自身を含む): 64356992

約数和(自身を除く): 42813680

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 97, 112, 168, 194, 291, 336, 388, 582, 661, 679, 776, 1164, 1322, 1358, 1552, 1983, 2037, 2328, 2644, 2716, 3966, 4074, 4627, 4656, 5288, 5432, 7932, 8148, 9254, 10576, 10864, 13881, 15864, 16296, 18508, 27762, 31728, 32592, 37016, 55524, 64117, 74032, 111048, 128234, 192351, 222096, 256468, 384702, 448819, 512936, 769404, 897638, 1025872, 1346457, 1538808, 1795276, 2692914, 3077616, 3590552, 5385828, 7181104, 10771656, 21543312]

約数ペア:

[(1, 21543312), (2, 10771656), (3, 7181104), (4, 5385828), (6, 3590552), (7, 3077616), (8, 2692914), (12, 1795276), (14, 1538808), (16, 1346457), (21, 1025872), (24, 897638), (28, 769404), (42, 512936), (48, 448819), (56, 384702), (84, 256468), (97, 222096), (112, 192351), (168, 128234), (194, 111048), (291, 74032), (336, 64117), (388, 55524), (582, 37016), (661, 32592), (679, 31728), (776, 27762), (1164, 18508), (1322, 16296), (1358, 15864), (1552, 13881), (1983, 10864), (2037, 10576), (2328, 9254), (2644, 8148), (2716, 7932), (3966, 5432), (4074, 5288), (4627, 4656)]