20691748

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67181}}^1$

素因数の和:67203

約数の個数: 24

約数和(自身を含む): 45146304

約数和(自身を除く): 24454556

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 67181, 134362, 268724, 470267, 738991, 940534, 1477982, 1881068, 2955964, 5172937, 10345874, 20691748]

約数ペア:

[(1, 20691748), (2, 10345874), (4, 5172937), (7, 2955964), (11, 1881068), (14, 1477982), (22, 940534), (28, 738991), (44, 470267), (77, 268724), (154, 134362), (308, 67181)]