1247939

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{853}}^1$

素因数の和:890

約数の個数: 16

約数和(自身を含む): 1639680

約数和(自身を除く): 391741

約数列:

[1, 7, 11, 19, 77, 133, 209, 853, 1463, 5971, 9383, 16207, 65681, 113449, 178277, 1247939]

約数ペア:

[(1, 1247939), (7, 178277), (11, 113449), (19, 65681), (77, 16207), (133, 9383), (209, 5971), (853, 1463)]