18889767

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{17939}}^1$

素因数の和:17964

約数の個数: 20

約数和(自身を含む): 30390360

約数和(自身を除く): 11500593

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 17939, 53817, 161451, 233207, 484353, 699621, 1453059, 2098863, 6296589, 18889767]

約数ペア:

[(1, 18889767), (3, 6296589), (9, 2098863), (13, 1453059), (27, 699621), (39, 484353), (81, 233207), (117, 161451), (351, 53817), (1053, 17939)]