21040768328

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{293}}^1\times {\mathrm{353}}^1\times {\mathrm{431}}^1$

素因数の和:1142

約数の個数: 64

約数和(自身を含む): 40464748800

約数和(自身を除く): 19423980472

約数列:

[1, 2, 4, 8, 59, 118, 236, 293, 353, 431, 472, 586, 706, 862, 1172, 1412, 1724, 2344, 2824, 3448, 17287, 20827, 25429, 34574, 41654, 50858, 69148, 83308, 101716, 103429, 126283, 138296, 152143, 166616, 203432, 206858, 252566, 304286, 413716, 505132, 608572, 827432, 1010264, 1217144, 6102311, 7450697, 8976437, 12204622, 14901394, 17952874, 24409244, 29802788, 35905748, 44577899, 48818488, 59605576, 71811496, 89155798, 178311596, 356623192, 2630096041, 5260192082, 10520384164, 21040768328]

約数ペア:

[(1, 21040768328), (2, 10520384164), (4, 5260192082), (8, 2630096041), (59, 356623192), (118, 178311596), (236, 89155798), (293, 71811496), (353, 59605576), (431, 48818488), (472, 44577899), (586, 35905748), (706, 29802788), (862, 24409244), (1172, 17952874), (1412, 14901394), (1724, 12204622), (2344, 8976437), (2824, 7450697), (3448, 6102311), (17287, 1217144), (20827, 1010264), (25429, 827432), (34574, 608572), (41654, 505132), (50858, 413716), (69148, 304286), (83308, 252566), (101716, 206858), (103429, 203432), (126283, 166616), (138296, 152143)]