20609091

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{631}}^1$

素因数の和:847

約数の個数: 24

約数和(自身を含む): 31549440

約数和(自身を除く): 10940349

約数列:

[1, 3, 9, 19, 57, 171, 191, 573, 631, 1719, 1893, 3629, 5679, 10887, 11989, 32661, 35967, 107901, 120521, 361563, 1084689, 2289899, 6869697, 20609091]

約数ペア:

[(1, 20609091), (3, 6869697), (9, 2289899), (19, 1084689), (57, 361563), (171, 120521), (191, 107901), (573, 35967), (631, 32661), (1719, 11989), (1893, 10887), (3629, 5679)]