27991089

素因数分解:

$3^4\times 7^1\times {\mathrm{49367}}^1$

素因数の和:49386

約数の個数: 20

約数和(自身を含む): 47788224

約数和(自身を除く): 19797135

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 49367, 148101, 345569, 444303, 1036707, 1332909, 3110121, 3998727, 9330363, 27991089]

約数ペア:

[(1, 27991089), (3, 9330363), (7, 3998727), (9, 3110121), (21, 1332909), (27, 1036707), (63, 444303), (81, 345569), (189, 148101), (567, 49367)]