20126421213

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{457}}^1\times {\mathrm{877}}^1\times {\mathrm{881}}^1$

素因数の和:2237

約数の個数: 32

約数和(自身を含む): 28373869440

約数和(自身を除く): 8247448227

約数列:

[1, 3, 19, 57, 457, 877, 881, 1371, 2631, 2643, 8683, 16663, 16739, 26049, 49989, 50217, 400789, 402617, 772637, 1202367, 1207851, 2317911, 7614991, 7649723, 14680103, 22844973, 22949169, 44040309, 353095109, 1059285327, 6708807071, 20126421213]

約数ペア:

[(1, 20126421213), (3, 6708807071), (19, 1059285327), (57, 353095109), (457, 44040309), (877, 22949169), (881, 22844973), (1371, 14680103), (2631, 7649723), (2643, 7614991), (8683, 2317911), (16663, 1207851), (16739, 1202367), (26049, 772637), (49989, 402617), (50217, 400789)]