81560241

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{12569}}^1$

素因数の和:12685

約数の個数: 24

約数和(自身を含む): 135957120

約数和(自身を除く): 54396879

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, 6489, 12569, 37707, 87983, 113121, 263949, 791847, 1294607, 3883821, 9062249, 11651463, 27186747, 81560241]

約数ペア:

[(1, 81560241), (3, 27186747), (7, 11651463), (9, 9062249), (21, 3883821), (63, 1294607), (103, 791847), (309, 263949), (721, 113121), (927, 87983), (2163, 37707), (6489, 12569)]