20327949

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{17509}}^1$

素因数の和:17561

約数の個数: 16

約数和(自身を含む): 30817600

約数和(自身を除く): 10489651

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 17509, 52527, 157581, 472743, 752887, 2258661, 6775983, 20327949]

約数ペア:

[(1, 20327949), (3, 6775983), (9, 2258661), (27, 752887), (43, 472743), (129, 157581), (387, 52527), (1161, 17509)]