19871859

素因数分解:

$3^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{4903}}^1$

素因数の和:5106

約数の個数: 16

約数和(自身を含む): 30444032

約数和(自身を除く): 10572173

約数列:

[1, 3, 7, 21, 193, 579, 1351, 4053, 4903, 14709, 34321, 102963, 946279, 2838837, 6623953, 19871859]

約数ペア:

[(1, 19871859), (3, 6623953), (7, 2838837), (21, 946279), (193, 102963), (579, 34321), (1351, 14709), (4053, 4903)]