21123312

素因数分解:

$2^4\times 3^1\times 7^3\times {\mathrm{1283}}^1$

素因数の和:1315

約数の個数: 80

約数和(自身を含む): 63686400

約数和(自身を除く): 42563088

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 49, 56, 84, 98, 112, 147, 168, 196, 294, 336, 343, 392, 588, 686, 784, 1029, 1176, 1283, 1372, 2058, 2352, 2566, 2744, 3849, 4116, 5132, 5488, 7698, 8232, 8981, 10264, 15396, 16464, 17962, 20528, 26943, 30792, 35924, 53886, 61584, 62867, 71848, 107772, 125734, 143696, 188601, 215544, 251468, 377202, 431088, 440069, 502936, 754404, 880138, 1005872, 1320207, 1508808, 1760276, 2640414, 3017616, 3520552, 5280828, 7041104, 10561656, 21123312]

約数ペア:

[(1, 21123312), (2, 10561656), (3, 7041104), (4, 5280828), (6, 3520552), (7, 3017616), (8, 2640414), (12, 1760276), (14, 1508808), (16, 1320207), (21, 1005872), (24, 880138), (28, 754404), (42, 502936), (48, 440069), (49, 431088), (56, 377202), (84, 251468), (98, 215544), (112, 188601), (147, 143696), (168, 125734), (196, 107772), (294, 71848), (336, 62867), (343, 61584), (392, 53886), (588, 35924), (686, 30792), (784, 26943), (1029, 20528), (1176, 17962), (1283, 16464), (1372, 15396), (2058, 10264), (2352, 8981), (2566, 8232), (2744, 7698), (3849, 5488), (4116, 5132)]