20558888

素因数分解:

$2^3\times 7^1\times {\mathrm{367123}}^1$

素因数の和:367136

約数の個数: 16

約数和(自身を含む): 44054880

約数和(自身を除く): 23495992

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 367123, 734246, 1468492, 2569861, 2936984, 5139722, 10279444, 20558888]

約数ペア:

[(1, 20558888), (2, 10279444), (4, 5139722), (7, 2936984), (8, 2569861), (14, 1468492), (28, 734246), (56, 367123)]