21676015155

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{85003981}}^1$

素因数の和:85004006

約数の個数: 16

約数和(自身を含む): 36721720224

約数和(自身を除く): 15045705069

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 85003981, 255011943, 425019905, 1275059715, 1445067677, 4335203031, 7225338385, 21676015155]

約数ペア:

[(1, 21676015155), (3, 7225338385), (5, 4335203031), (15, 1445067677), (17, 1275059715), (51, 425019905), (85, 255011943), (255, 85003981)]