81720723

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{65957}}^1$

素因数の和:66026

約数の個数: 16

約数和(自身を含む): 126639360

約数和(自身を除く): 44918637

約数列:

[1, 3, 7, 21, 59, 177, 413, 1239, 65957, 197871, 461699, 1385097, 3891463, 11674389, 27240241, 81720723]

約数ペア:

[(1, 81720723), (3, 27240241), (7, 11674389), (21, 3891463), (59, 1385097), (177, 461699), (413, 197871), (1239, 65957)]