81855657

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{17939}}^1$

素因数の和:17974

約数の個数: 24

約数和(自身を含む): 131320800

約数和(自身を除く): 49465143

約数列:

[1, 3, 9, 13, 27, 39, 117, 169, 351, 507, 1521, 4563, 17939, 53817, 161451, 233207, 484353, 699621, 2098863, 3031691, 6296589, 9095073, 27285219, 81855657]

約数ペア:

[(1, 81855657), (3, 27285219), (9, 9095073), (13, 6296589), (27, 3031691), (39, 2098863), (117, 699621), (169, 484353), (351, 233207), (507, 161451), (1521, 53817), (4563, 17939)]