18858566

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{1999}}^1$

素因数の和:2143

約数の個数: 16

約数和(自身を含む): 29160000

約数和(自身を除く): 10301434

約数列:

[1, 2, 53, 89, 106, 178, 1999, 3998, 4717, 9434, 105947, 177911, 211894, 355822, 9429283, 18858566]

約数ペア:

[(1, 18858566), (2, 9429283), (53, 355822), (89, 211894), (106, 177911), (178, 105947), (1999, 9434), (3998, 4717)]