20942411517

素因数分解:

$3^3\times {\mathrm{151}}^1\times {\mathrm{5136721}}^1$

素因数の和:5136881

約数の個数: 16

約数和(自身を含む): 31231269760

約数和(自身を除く): 10288858243

約数列:

[1, 3, 9, 27, 151, 453, 1359, 4077, 5136721, 15410163, 46230489, 138691467, 775644871, 2326934613, 6980803839, 20942411517]

約数ペア:

[(1, 20942411517), (3, 6980803839), (9, 2326934613), (27, 775644871), (151, 138691467), (453, 46230489), (1359, 15410163), (4077, 5136721)]