19862997

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{7817}}^1$

素因数の和:7849

約数の個数: 24

約数和(自身を含む): 33273408

約数和(自身を除く): 13410411

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 231, 363, 847, 2541, 7817, 23451, 54719, 85987, 164157, 257961, 601909, 945857, 1805727, 2837571, 6620999, 19862997]

約数ペア:

[(1, 19862997), (3, 6620999), (7, 2837571), (11, 1805727), (21, 945857), (33, 601909), (77, 257961), (121, 164157), (231, 85987), (363, 54719), (847, 23451), (2541, 7817)]