128913771

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{1871}}^1$

素因数の和:2091

約数の個数: 32

約数和(自身を含む): 209184768

約数和(自身を除く): 80270997

約数列:

[1, 3, 7, 17, 21, 51, 119, 193, 357, 579, 1351, 1871, 3281, 4053, 5613, 9843, 13097, 22967, 31807, 39291, 68901, 95421, 222649, 361103, 667947, 1083309, 2527721, 6138751, 7583163, 18416253, 42971257, 128913771]

約数ペア:

[(1, 128913771), (3, 42971257), (7, 18416253), (17, 7583163), (21, 6138751), (51, 2527721), (119, 1083309), (193, 667947), (357, 361103), (579, 222649), (1351, 95421), (1871, 68901), (3281, 39291), (4053, 31807), (5613, 22967), (9843, 13097)]