21082167

素因数分解:

$3^3\times {\mathrm{151}}^1\times {\mathrm{5171}}^1$

素因数の和:5331

約数の個数: 16

約数和(自身を含む): 31445760

約数和(自身を除く): 10363593

約数列:

[1, 3, 9, 27, 151, 453, 1359, 4077, 5171, 15513, 46539, 139617, 780821, 2342463, 7027389, 21082167]

約数ペア:

[(1, 21082167), (3, 7027389), (9, 2342463), (27, 780821), (151, 139617), (453, 46539), (1359, 15513), (4077, 5171)]