20938036

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{11161}}^1$

素因数の和:11239

約数の個数: 24

約数和(自身を含む): 42504896

約数和(自身を除く): 21566860

約数列:

[1, 2, 4, 7, 14, 28, 67, 134, 268, 469, 938, 1876, 11161, 22322, 44644, 78127, 156254, 312508, 747787, 1495574, 2991148, 5234509, 10469018, 20938036]

約数ペア:

[(1, 20938036), (2, 10469018), (4, 5234509), (7, 2991148), (14, 1495574), (28, 747787), (67, 312508), (134, 156254), (268, 78127), (469, 44644), (938, 22322), (1876, 11161)]