19804897

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{3463}}^1$

素因数の和:3532

約数の個数: 16

約数和(自身を含む): 24386560

約数和(自身を除く): 4581663

約数列:

[1, 7, 19, 43, 133, 301, 817, 3463, 5719, 24241, 65797, 148909, 460579, 1042363, 2829271, 19804897]

約数ペア:

[(1, 19804897), (7, 2829271), (19, 1042363), (43, 460579), (133, 148909), (301, 65797), (817, 24241), (3463, 5719)]