20806016

素因数分解:

$2^7\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2111}}^1$

素因数の和:2143

約数の個数: 64

約数和(自身を含む): 51701760

約数和(自身を除く): 30895744

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 64, 77, 88, 112, 128, 154, 176, 224, 308, 352, 448, 616, 704, 896, 1232, 1408, 2111, 2464, 4222, 4928, 8444, 9856, 14777, 16888, 23221, 29554, 33776, 46442, 59108, 67552, 92884, 118216, 135104, 162547, 185768, 236432, 270208, 325094, 371536, 472864, 650188, 743072, 945728, 1300376, 1486144, 1891456, 2600752, 2972288, 5201504, 10403008, 20806016]

約数ペア:

[(1, 20806016), (2, 10403008), (4, 5201504), (7, 2972288), (8, 2600752), (11, 1891456), (14, 1486144), (16, 1300376), (22, 945728), (28, 743072), (32, 650188), (44, 472864), (56, 371536), (64, 325094), (77, 270208), (88, 236432), (112, 185768), (128, 162547), (154, 135104), (176, 118216), (224, 92884), (308, 67552), (352, 59108), (448, 46442), (616, 33776), (704, 29554), (896, 23221), (1232, 16888), (1408, 14777), (2111, 9856), (2464, 8444), (4222, 4928)]