18839817

素因数分解:

$3^3\times {\mathrm{151}}^1\times {\mathrm{4621}}^1$

素因数の和:4781

約数の個数: 16

約数和(自身を含む): 28101760

約数和(自身を除く): 9261943

約数列:

[1, 3, 9, 27, 151, 453, 1359, 4077, 4621, 13863, 41589, 124767, 697771, 2093313, 6279939, 18839817]

約数ペア:

[(1, 18839817), (3, 6279939), (9, 2093313), (27, 697771), (151, 124767), (453, 41589), (1359, 13863), (4077, 4621)]