20791210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{189011}}^1$

素因数の和:189029

約数の個数: 16

約数和(自身を含む): 40826592

約数和(自身を除く): 20035382

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 189011, 378022, 945055, 1890110, 2079121, 4158242, 10395605, 20791210]

約数ペア:

[(1, 20791210), (2, 10395605), (5, 4158242), (10, 2079121), (11, 1890110), (22, 945055), (55, 378022), (110, 189011)]