8143989

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{20411}}^1$

素因数の和:20440

約数の個数: 16

約数和(自身を含む): 13063680

約数和(自身を除く): 4919691

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 20411, 61233, 142877, 387809, 428631, 1163427, 2714663, 8143989]

約数ペア:

[(1, 8143989), (3, 2714663), (7, 1163427), (19, 428631), (21, 387809), (57, 142877), (133, 61233), (399, 20411)]