19487061

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{21871}}^1$

素因数の和:21894

約数の個数: 20

約数和(自身を含む): 31758144

約数和(自身を除く): 12271083

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 21871, 65613, 196839, 240581, 590517, 721743, 1771551, 2165229, 6495687, 19487061]

約数ペア:

[(1, 19487061), (3, 6495687), (9, 2165229), (11, 1771551), (27, 721743), (33, 590517), (81, 240581), (99, 196839), (297, 65613), (891, 21871)]