20809118

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{631}}^1\times {\mathrm{1499}}^1$

素因数の和:2143

約数の個数: 16

約数和(自身を含む): 34128000

約数和(自身を除く): 13318882

約数列:

[1, 2, 11, 22, 631, 1262, 1499, 2998, 6941, 13882, 16489, 32978, 945869, 1891738, 10404559, 20809118]

約数ペア:

[(1, 20809118), (2, 10404559), (11, 1891738), (22, 945869), (631, 32978), (1262, 16489), (1499, 13882), (2998, 6941)]