20316909

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{827}}^1$

素因数の和:1280

約数の個数: 16

約数和(自身を含む): 28615680

約数和(自身を除く): 8298771

約数列:

[1, 3, 19, 57, 431, 827, 1293, 2481, 8189, 15713, 24567, 47139, 356437, 1069311, 6772303, 20316909]

約数ペア:

[(1, 20316909), (3, 6772303), (19, 1069311), (57, 356437), (431, 47139), (827, 24567), (1293, 15713), (2481, 8189)]