18977590

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{26729}}^1$

素因数の和:26807

約数の個数: 16

約数和(自身を含む): 34642080

約数和(自身を除く): 15664490

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 26729, 53458, 133645, 267290, 1897759, 3795518, 9488795, 18977590]

約数ペア:

[(1, 18977590), (2, 9488795), (5, 3795518), (10, 1897759), (71, 267290), (142, 133645), (355, 53458), (710, 26729)]