20681210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{188011}}^1$

素因数の和:188029

約数の個数: 16

約数和(自身を含む): 40610592

約数和(自身を除く): 19929382

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 188011, 376022, 940055, 1880110, 2068121, 4136242, 10340605, 20681210]

約数ペア:

[(1, 20681210), (2, 10340605), (5, 4136242), (10, 2068121), (11, 1880110), (22, 940055), (55, 376022), (110, 188011)]