21149856

素因数分解:

$2^5\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1$

素因数の和:308

約数の個数: 192

約数和(自身を含む): 76204800

約数和(自身を除く): 55054944

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 27, 28, 32, 36, 39, 42, 48, 52, 54, 56, 63, 72, 78, 84, 91, 96, 104, 108, 112, 117, 126, 144, 156, 168, 182, 189, 208, 216, 224, 234, 252, 269, 273, 288, 312, 336, 351, 364, 378, 416, 432, 468, 504, 538, 546, 624, 672, 702, 728, 756, 807, 819, 864, 936, 1008, 1076, 1092, 1248, 1404, 1456, 1512, 1614, 1638, 1872, 1883, 2016, 2152, 2184, 2421, 2457, 2808, 2912, 3024, 3228, 3276, 3497, 3744, 3766, 4304, 4368, 4842, 4914, 5616, 5649, 6048, 6456, 6552, 6994, 7263, 7532, 8608, 8736, 9684, 9828, 10491, 11232, 11298, 12912, 13104, 13988, 14526, 15064, 16947, 19368, 19656, 20982, 22596, 24479, 25824, 26208, 27976, 29052, 30128, 31473, 33894, 38736, 39312, 41964, 45192, 48958, 50841, 55952, 58104, 60256, 62946, 67788, 73437, 77472, 78624, 83928, 90384, 94419, 97916, 101682, 111904, 116208, 125892, 135576, 146874, 167856, 180768, 188838, 195832, 203364, 220311, 232416, 251784, 271152, 293748, 335712, 377676, 391664, 406728, 440622, 503568, 542304, 587496, 660933, 755352, 783328, 813456, 881244, 1007136, 1174992, 1321866, 1510704, 1626912, 1762488, 2349984, 2643732, 3021408, 3524976, 5287464, 7049952, 10574928, 21149856]

約数ペア:

[(1, 21149856), (2, 10574928), (3, 7049952), (4, 5287464), (6, 3524976), (7, 3021408), (8, 2643732), (9, 2349984), (12, 1762488), (13, 1626912), (14, 1510704), (16, 1321866), (18, 1174992), (21, 1007136), (24, 881244), (26, 813456), (27, 783328), (28, 755352), (32, 660933), (36, 587496), (39, 542304), (42, 503568), (48, 440622), (52, 406728), (54, 391664), (56, 377676), (63, 335712), (72, 293748), (78, 271152), (84, 251784), (91, 232416), (96, 220311), (104, 203364), (108, 195832), (112, 188838), (117, 180768), (126, 167856), (144, 146874), (156, 135576), (168, 125892), (182, 116208), (189, 111904), (208, 101682), (216, 97916), (224, 94419), (234, 90384), (252, 83928), (269, 78624), (273, 77472), (288, 73437), (312, 67788), (336, 62946), (351, 60256), (364, 58104), (378, 55952), (416, 50841), (432, 48958), (468, 45192), (504, 41964), (538, 39312), (546, 38736), (624, 33894), (672, 31473), (702, 30128), (728, 29052), (756, 27976), (807, 26208), (819, 25824), (864, 24479), (936, 22596), (1008, 20982), (1076, 19656), (1092, 19368), (1248, 16947), (1404, 15064), (1456, 14526), (1512, 13988), (1614, 13104), (1638, 12912), (1872, 11298), (1883, 11232), (2016, 10491), (2152, 9828), (2184, 9684), (2421, 8736), (2457, 8608), (2808, 7532), (2912, 7263), (3024, 6994), (3228, 6552), (3276, 6456), (3497, 6048), (3744, 5649), (3766, 5616), (4304, 4914), (4368, 4842)]