21280896

素因数分解:

$2^7\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1$

素因数の和:76

約数の個数: 288

約数和(自身を含む): 79361100

約数和(自身を除く): 58080204

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 28, 29, 32, 36, 39, 42, 48, 49, 52, 56, 58, 63, 64, 72, 78, 84, 87, 91, 96, 98, 104, 112, 116, 117, 126, 128, 144, 147, 156, 168, 174, 182, 192, 196, 203, 208, 224, 232, 234, 252, 261, 273, 288, 294, 312, 336, 348, 364, 377, 384, 392, 406, 416, 441, 448, 464, 468, 504, 522, 546, 576, 588, 609, 624, 637, 672, 696, 728, 754, 784, 812, 819, 832, 882, 896, 928, 936, 1008, 1044, 1092, 1131, 1152, 1176, 1218, 1248, 1274, 1344, 1392, 1421, 1456, 1508, 1568, 1624, 1638, 1664, 1764, 1827, 1856, 1872, 1911, 2016, 2088, 2184, 2262, 2352, 2436, 2496, 2548, 2639, 2688, 2784, 2842, 2912, 3016, 3136, 3248, 3276, 3393, 3528, 3654, 3712, 3744, 3822, 4032, 4176, 4263, 4368, 4524, 4704, 4872, 4992, 5096, 5278, 5568, 5684, 5733, 5824, 6032, 6272, 6496, 6552, 6786, 7056, 7308, 7488, 7644, 7917, 8064, 8352, 8526, 8736, 9048, 9408, 9744, 10192, 10556, 11136, 11368, 11466, 11648, 12064, 12789, 12992, 13104, 13572, 14112, 14616, 14976, 15288, 15834, 16704, 17052, 17472, 18096, 18473, 18816, 19488, 20384, 21112, 22736, 22932, 23751, 24128, 25578, 25984, 26208, 27144, 28224, 29232, 30576, 31668, 33408, 34104, 34944, 36192, 36946, 38976, 40768, 42224, 45472, 45864, 47502, 48256, 51156, 52416, 54288, 55419, 56448, 58464, 61152, 63336, 68208, 72384, 73892, 77952, 81536, 84448, 90944, 91728, 95004, 102312, 104832, 108576, 110838, 116928, 122304, 126672, 136416, 144768, 147784, 166257, 168896, 181888, 183456, 190008, 204624, 217152, 221676, 233856, 244608, 253344, 272832, 295568, 332514, 337792, 366912, 380016, 409248, 434304, 443352, 506688, 545664, 591136, 665028, 733824, 760032, 818496, 886704, 1013376, 1182272, 1330056, 1520064, 1636992, 1773408, 2364544, 2660112, 3040128, 3546816, 5320224, 7093632, 10640448, 21280896]

約数ペア:

[(1, 21280896), (2, 10640448), (3, 7093632), (4, 5320224), (6, 3546816), (7, 3040128), (8, 2660112), (9, 2364544), (12, 1773408), (13, 1636992), (14, 1520064), (16, 1330056), (18, 1182272), (21, 1013376), (24, 886704), (26, 818496), (28, 760032), (29, 733824), (32, 665028), (36, 591136), (39, 545664), (42, 506688), (48, 443352), (49, 434304), (52, 409248), (56, 380016), (58, 366912), (63, 337792), (64, 332514), (72, 295568), (78, 272832), (84, 253344), (87, 244608), (91, 233856), (96, 221676), (98, 217152), (104, 204624), (112, 190008), (116, 183456), (117, 181888), (126, 168896), (128, 166257), (144, 147784), (147, 144768), (156, 136416), (168, 126672), (174, 122304), (182, 116928), (192, 110838), (196, 108576), (203, 104832), (208, 102312), (224, 95004), (232, 91728), (234, 90944), (252, 84448), (261, 81536), (273, 77952), (288, 73892), (294, 72384), (312, 68208), (336, 63336), (348, 61152), (364, 58464), (377, 56448), (384, 55419), (392, 54288), (406, 52416), (416, 51156), (441, 48256), (448, 47502), (464, 45864), (468, 45472), (504, 42224), (522, 40768), (546, 38976), (576, 36946), (588, 36192), (609, 34944), (624, 34104), (637, 33408), (672, 31668), (696, 30576), (728, 29232), (754, 28224), (784, 27144), (812, 26208), (819, 25984), (832, 25578), (882, 24128), (896, 23751), (928, 22932), (936, 22736), (1008, 21112), (1044, 20384), (1092, 19488), (1131, 18816), (1152, 18473), (1176, 18096), (1218, 17472), (1248, 17052), (1274, 16704), (1344, 15834), (1392, 15288), (1421, 14976), (1456, 14616), (1508, 14112), (1568, 13572), (1624, 13104), (1638, 12992), (1664, 12789), (1764, 12064), (1827, 11648), (1856, 11466), (1872, 11368), (1911, 11136), (2016, 10556), (2088, 10192), (2184, 9744), (2262, 9408), (2352, 9048), (2436, 8736), (2496, 8526), (2548, 8352), (2639, 8064), (2688, 7917), (2784, 7644), (2842, 7488), (2912, 7308), (3016, 7056), (3136, 6786), (3248, 6552), (3276, 6496), (3393, 6272), (3528, 6032), (3654, 5824), (3712, 5733), (3744, 5684), (3822, 5568), (4032, 5278), (4176, 5096), (4263, 4992), (4368, 4872), (4524, 4704)]