128253951

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{55021}}^1$

素因数の和:55071

約数の個数: 24

約数和(自身を含む): 217446944

約数和(自身を除く): 89192993

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 777, 2331, 55021, 165063, 385147, 495189, 1155441, 2035777, 3466323, 6107331, 14250439, 18321993, 42751317, 128253951]

約数ペア:

[(1, 128253951), (3, 42751317), (7, 18321993), (9, 14250439), (21, 6107331), (37, 3466323), (63, 2035777), (111, 1155441), (259, 495189), (333, 385147), (777, 165063), (2331, 55021)]