27688509

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{43331}}^1$

素因数の和:43408

約数の個数: 12

約数和(自身を含む): 40558752

約数和(自身を除く): 12870243

約数列:

[1, 3, 9, 71, 213, 639, 43331, 129993, 389979, 3076501, 9229503, 27688509]

約数ペア:

[(1, 27688509), (3, 9229503), (9, 3076501), (71, 389979), (213, 129993), (639, 43331)]