20717568

素因数分解:

$2^{13}\times 3^2\times {\mathrm{281}}^1$

素因数の和:313

約数の個数: 84

約数和(自身を含む): 60060078

約数和(自身を除く): 39342510

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 128, 144, 192, 256, 281, 288, 384, 512, 562, 576, 768, 843, 1024, 1124, 1152, 1536, 1686, 2048, 2248, 2304, 2529, 3072, 3372, 4096, 4496, 4608, 5058, 6144, 6744, 8192, 8992, 9216, 10116, 12288, 13488, 17984, 18432, 20232, 24576, 26976, 35968, 36864, 40464, 53952, 71936, 73728, 80928, 107904, 143872, 161856, 215808, 287744, 323712, 431616, 575488, 647424, 863232, 1150976, 1294848, 1726464, 2301952, 2589696, 3452928, 5179392, 6905856, 10358784, 20717568]

約数ペア:

[(1, 20717568), (2, 10358784), (3, 6905856), (4, 5179392), (6, 3452928), (8, 2589696), (9, 2301952), (12, 1726464), (16, 1294848), (18, 1150976), (24, 863232), (32, 647424), (36, 575488), (48, 431616), (64, 323712), (72, 287744), (96, 215808), (128, 161856), (144, 143872), (192, 107904), (256, 80928), (281, 73728), (288, 71936), (384, 53952), (512, 40464), (562, 36864), (576, 35968), (768, 26976), (843, 24576), (1024, 20232), (1124, 18432), (1152, 17984), (1536, 13488), (1686, 12288), (2048, 10116), (2248, 9216), (2304, 8992), (2529, 8192), (3072, 6744), (3372, 6144), (4096, 5058), (4496, 4608)]