20731090

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109111}}^1$

素因数の和:109137

約数の個数: 16

約数和(自身を含む): 39280320

約数和(自身を除く): 18549230

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 109111, 218222, 545555, 1091110, 2073109, 4146218, 10365545, 20731090]

約数ペア:

[(1, 20731090), (2, 10365545), (5, 4146218), (10, 2073109), (19, 1091110), (38, 545555), (95, 218222), (190, 109111)]