20814915

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{126151}}^1$

素因数の和:126170

約数の個数: 16

約数和(自身を含む): 36331776

約数和(自身を除く): 15516861

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 126151, 378453, 630755, 1387661, 1892265, 4162983, 6938305, 20814915]

約数ペア:

[(1, 20814915), (3, 6938305), (5, 4162983), (11, 1892265), (15, 1387661), (33, 630755), (55, 378453), (165, 126151)]