28058247

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{12037}}^1$

素因数の和:12087

約数の個数: 24

約数和(自身を含む): 47574176

約数和(自身を除く): 19515929

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 777, 2331, 12037, 36111, 84259, 108333, 252777, 445369, 758331, 1336107, 3117583, 4008321, 9352749, 28058247]

約数ペア:

[(1, 28058247), (3, 9352749), (7, 4008321), (9, 3117583), (21, 1336107), (37, 758331), (63, 445369), (111, 252777), (259, 108333), (333, 84259), (777, 36111), (2331, 12037)]