20001087

素因数分解:

$3^5\times {\mathrm{53}}^1\times {\mathrm{1553}}^1$

素因数の和:1621

約数の個数: 24

約数和(自身を含む): 30545424

約数和(自身を除く): 10544337

約数列:

[1, 3, 9, 27, 53, 81, 159, 243, 477, 1431, 1553, 4293, 4659, 12879, 13977, 41931, 82309, 125793, 246927, 377379, 740781, 2222343, 6667029, 20001087]

約数ペア:

[(1, 20001087), (3, 6667029), (9, 2222343), (27, 740781), (53, 377379), (81, 246927), (159, 125793), (243, 82309), (477, 41931), (1431, 13977), (1553, 12879), (4293, 4659)]