20644029

素因数分解:

$3^2\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1553}}^1$

素因数の和:1777

約数の個数: 24

約数和(自身を含む): 34262592

約数和(自身を除く): 13618563

約数列:

[1, 3, 7, 9, 21, 63, 211, 633, 1477, 1553, 1899, 4431, 4659, 10871, 13293, 13977, 32613, 97839, 327683, 983049, 2293781, 2949147, 6881343, 20644029]

約数ペア:

[(1, 20644029), (3, 6881343), (7, 2949147), (9, 2293781), (21, 983049), (63, 327683), (211, 97839), (633, 32613), (1477, 13977), (1553, 13293), (1899, 10871), (4431, 4659)]