21129231808

素因数分解:

$2^6\times {\mathrm{19}}^3\times {\mathrm{127}}^1\times {\mathrm{379}}^1$

素因数の和:575

約数の個数: 112

約数和(自身を含む): 44723507200

約数和(自身を除く): 23594275392

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 127, 152, 254, 304, 361, 379, 508, 608, 722, 758, 1016, 1216, 1444, 1516, 2032, 2413, 2888, 3032, 4064, 4826, 5776, 6064, 6859, 7201, 8128, 9652, 11552, 12128, 13718, 14402, 19304, 23104, 24256, 27436, 28804, 38608, 45847, 48133, 54872, 57608, 77216, 91694, 96266, 109744, 115216, 136819, 154432, 183388, 192532, 219488, 230432, 273638, 366776, 385064, 438976, 460864, 547276, 733552, 770128, 871093, 914527, 1094552, 1467104, 1540256, 1742186, 1829054, 2189104, 2599561, 2934208, 3080512, 3484372, 3658108, 4378208, 5199122, 6968744, 7316216, 8756416, 10398244, 13937488, 14632432, 17376013, 20796488, 27874976, 29264864, 34752026, 41592976, 55749952, 58529728, 69504052, 83185952, 139008104, 166371904, 278016208, 330144247, 556032416, 660288494, 1112064832, 1320576988, 2641153976, 5282307952, 10564615904, 21129231808]

約数ペア:

[(1, 21129231808), (2, 10564615904), (4, 5282307952), (8, 2641153976), (16, 1320576988), (19, 1112064832), (32, 660288494), (38, 556032416), (64, 330144247), (76, 278016208), (127, 166371904), (152, 139008104), (254, 83185952), (304, 69504052), (361, 58529728), (379, 55749952), (508, 41592976), (608, 34752026), (722, 29264864), (758, 27874976), (1016, 20796488), (1216, 17376013), (1444, 14632432), (1516, 13937488), (2032, 10398244), (2413, 8756416), (2888, 7316216), (3032, 6968744), (4064, 5199122), (4826, 4378208), (5776, 3658108), (6064, 3484372), (6859, 3080512), (7201, 2934208), (8128, 2599561), (9652, 2189104), (11552, 1829054), (12128, 1742186), (13718, 1540256), (14402, 1467104), (19304, 1094552), (23104, 914527), (24256, 871093), (27436, 770128), (28804, 733552), (38608, 547276), (45847, 460864), (48133, 438976), (54872, 385064), (57608, 366776), (77216, 273638), (91694, 230432), (96266, 219488), (109744, 192532), (115216, 183388), (136819, 154432)]