257512527

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{44777}}^1$

素因数の和:44860

約数の個数: 20

約数和(自身を含む): 390105936

約数和(自身を除く): 132593409

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 5751, 44777, 134331, 402993, 1208979, 3179167, 3626937, 9537501, 28612503, 85837509, 257512527]

約数ペア:

[(1, 257512527), (3, 85837509), (9, 28612503), (27, 9537501), (71, 3626937), (81, 3179167), (213, 1208979), (639, 402993), (1917, 134331), (5751, 44777)]