20563312

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{16691}}^1$

素因数の和:16717

約数の個数: 40

約数和(自身を含む): 49675392

約数和(自身を除く): 29112080

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 616, 1232, 16691, 33382, 66764, 116837, 133528, 183601, 233674, 267056, 367202, 467348, 734404, 934696, 1285207, 1468808, 1869392, 2570414, 2937616, 5140828, 10281656, 20563312]

約数ペア:

[(1, 20563312), (2, 10281656), (4, 5140828), (7, 2937616), (8, 2570414), (11, 1869392), (14, 1468808), (16, 1285207), (22, 934696), (28, 734404), (44, 467348), (56, 367202), (77, 267056), (88, 233674), (112, 183601), (154, 133528), (176, 116837), (308, 66764), (616, 33382), (1232, 16691)]