18827271

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{4787}}^1$

素因数の和:4835

約数の個数: 24

約数和(自身を含む): 29877120

約数和(自身を除く): 11049849

約数列:

[1, 3, 9, 19, 23, 57, 69, 171, 207, 437, 1311, 3933, 4787, 14361, 43083, 90953, 110101, 272859, 330303, 818577, 990909, 2091919, 6275757, 18827271]

約数ペア:

[(1, 18827271), (3, 6275757), (9, 2091919), (19, 990909), (23, 818577), (57, 330303), (69, 272859), (171, 110101), (207, 90953), (437, 43083), (1311, 14361), (3933, 4787)]