20315259

素因数分解:

$3^3\times {\mathrm{181}}^1\times {\mathrm{4157}}^1$

素因数の和:4347

約数の個数: 16

約数和(自身を含む): 30270240

約数和(自身を除く): 9954981

約数列:

[1, 3, 9, 27, 181, 543, 1629, 4157, 4887, 12471, 37413, 112239, 752417, 2257251, 6771753, 20315259]

約数ペア:

[(1, 20315259), (3, 6771753), (9, 2257251), (27, 752417), (181, 112239), (543, 37413), (1629, 12471), (4157, 4887)]