21270144

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:258

約数の個数: 128

約数和(自身を含む): 66487680

約数和(自身を除く): 45217536

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 41, 42, 48, 56, 64, 82, 84, 96, 112, 123, 128, 164, 168, 192, 193, 224, 246, 287, 328, 336, 384, 386, 448, 492, 574, 579, 656, 672, 772, 861, 896, 984, 1148, 1158, 1312, 1344, 1351, 1544, 1722, 1968, 2296, 2316, 2624, 2688, 2702, 3088, 3444, 3936, 4053, 4592, 4632, 5248, 5404, 6176, 6888, 7872, 7913, 8106, 9184, 9264, 10808, 12352, 13776, 15744, 15826, 16212, 18368, 18528, 21616, 23739, 24704, 27552, 31652, 32424, 36736, 37056, 43232, 47478, 55104, 55391, 63304, 64848, 74112, 86464, 94956, 110208, 110782, 126608, 129696, 166173, 172928, 189912, 221564, 253216, 259392, 332346, 379824, 443128, 506432, 518784, 664692, 759648, 886256, 1012864, 1329384, 1519296, 1772512, 2658768, 3038592, 3545024, 5317536, 7090048, 10635072, 21270144]

約数ペア:

[(1, 21270144), (2, 10635072), (3, 7090048), (4, 5317536), (6, 3545024), (7, 3038592), (8, 2658768), (12, 1772512), (14, 1519296), (16, 1329384), (21, 1012864), (24, 886256), (28, 759648), (32, 664692), (41, 518784), (42, 506432), (48, 443128), (56, 379824), (64, 332346), (82, 259392), (84, 253216), (96, 221564), (112, 189912), (123, 172928), (128, 166173), (164, 129696), (168, 126608), (192, 110782), (193, 110208), (224, 94956), (246, 86464), (287, 74112), (328, 64848), (336, 63304), (384, 55391), (386, 55104), (448, 47478), (492, 43232), (574, 37056), (579, 36736), (656, 32424), (672, 31652), (772, 27552), (861, 24704), (896, 23739), (984, 21616), (1148, 18528), (1158, 18368), (1312, 16212), (1344, 15826), (1351, 15744), (1544, 13776), (1722, 12352), (1968, 10808), (2296, 9264), (2316, 9184), (2624, 8106), (2688, 7913), (2702, 7872), (3088, 6888), (3444, 6176), (3936, 5404), (4053, 5248), (4592, 4632)]