18767007

素因数分解:

$3^2\times 7^1\times {\mathrm{297889}}^1$

素因数の和:297902

約数の個数: 12

約数和(自身を含む): 30980560

約数和(自身を除く): 12213553

約数列:

[1, 3, 7, 9, 21, 63, 297889, 893667, 2085223, 2681001, 6255669, 18767007]

約数ペア:

[(1, 18767007), (3, 6255669), (7, 2681001), (9, 2085223), (21, 893667), (63, 297889)]