21380352

素因数分解:

$2^8\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:164

約数の個数: 144

約数和(自身を含む): 67304832

約数和(自身を除く): 45924480

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, 97, 112, 123, 128, 164, 168, 192, 194, 224, 246, 256, 287, 291, 328, 336, 384, 388, 448, 492, 574, 582, 656, 672, 679, 768, 776, 861, 896, 984, 1148, 1164, 1312, 1344, 1358, 1552, 1722, 1792, 1968, 2037, 2296, 2328, 2624, 2688, 2716, 3104, 3444, 3936, 3977, 4074, 4592, 4656, 5248, 5376, 5432, 6208, 6888, 7872, 7954, 8148, 9184, 9312, 10496, 10864, 11931, 12416, 13776, 15744, 15908, 16296, 18368, 18624, 21728, 23862, 24832, 27552, 27839, 31488, 31816, 32592, 36736, 37248, 43456, 47724, 55104, 55678, 63632, 65184, 73472, 74496, 83517, 86912, 95448, 110208, 111356, 127264, 130368, 167034, 173824, 190896, 220416, 222712, 254528, 260736, 334068, 381792, 445424, 509056, 521472, 668136, 763584, 890848, 1018112, 1336272, 1527168, 1781696, 2672544, 3054336, 3563392, 5345088, 7126784, 10690176, 21380352]

約数ペア:

[(1, 21380352), (2, 10690176), (3, 7126784), (4, 5345088), (6, 3563392), (7, 3054336), (8, 2672544), (12, 1781696), (14, 1527168), (16, 1336272), (21, 1018112), (24, 890848), (28, 763584), (32, 668136), (41, 521472), (42, 509056), (48, 445424), (56, 381792), (64, 334068), (82, 260736), (84, 254528), (96, 222712), (97, 220416), (112, 190896), (123, 173824), (128, 167034), (164, 130368), (168, 127264), (192, 111356), (194, 110208), (224, 95448), (246, 86912), (256, 83517), (287, 74496), (291, 73472), (328, 65184), (336, 63632), (384, 55678), (388, 55104), (448, 47724), (492, 43456), (574, 37248), (582, 36736), (656, 32592), (672, 31816), (679, 31488), (768, 27839), (776, 27552), (861, 24832), (896, 23862), (984, 21728), (1148, 18624), (1164, 18368), (1312, 16296), (1344, 15908), (1358, 15744), (1552, 13776), (1722, 12416), (1792, 11931), (1968, 10864), (2037, 10496), (2296, 9312), (2328, 9184), (2624, 8148), (2688, 7954), (2716, 7872), (3104, 6888), (3444, 6208), (3936, 5432), (3977, 5376), (4074, 5248), (4592, 4656)]