20753656

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{4813}}^1$

素因数の和:4844

約数の個数: 48

約数和(自身を含む): 49391640

約数和(自身を除く): 28637984

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 49, 56, 77, 88, 98, 154, 196, 308, 392, 539, 616, 1078, 2156, 4312, 4813, 9626, 19252, 33691, 38504, 52943, 67382, 105886, 134764, 211772, 235837, 269528, 370601, 423544, 471674, 741202, 943348, 1482404, 1886696, 2594207, 2964808, 5188414, 10376828, 20753656]

約数ペア:

[(1, 20753656), (2, 10376828), (4, 5188414), (7, 2964808), (8, 2594207), (11, 1886696), (14, 1482404), (22, 943348), (28, 741202), (44, 471674), (49, 423544), (56, 370601), (77, 269528), (88, 235837), (98, 211772), (154, 134764), (196, 105886), (308, 67382), (392, 52943), (539, 38504), (616, 33691), (1078, 19252), (2156, 9626), (4312, 4813)]