28072989

素因数分解:

$3^2\times 7^1\times {\mathrm{191}}^1\times {\mathrm{2333}}^1$

素因数の和:2537

約数の個数: 24

約数和(自身を含む): 46605312

約数和(自身を除く): 18532323

約数列:

[1, 3, 7, 9, 21, 63, 191, 573, 1337, 1719, 2333, 4011, 6999, 12033, 16331, 20997, 48993, 146979, 445603, 1336809, 3119221, 4010427, 9357663, 28072989]

約数ペア:

[(1, 28072989), (3, 9357663), (7, 4010427), (9, 3119221), (21, 1336809), (63, 445603), (191, 146979), (573, 48993), (1337, 20997), (1719, 16331), (2333, 12033), (4011, 6999)]