19726929

素因数分解:

$3^3\times {\mathrm{109}}^1\times {\mathrm{6703}}^1$

素因数の和:6821

約数の個数: 16

約数和(自身を含む): 29497600

約数和(自身を除く): 9770671

約数列:

[1, 3, 9, 27, 109, 327, 981, 2943, 6703, 20109, 60327, 180981, 730627, 2191881, 6575643, 19726929]

約数ペア:

[(1, 19726929), (3, 6575643), (9, 2191881), (27, 730627), (109, 180981), (327, 60327), (981, 20109), (2943, 6703)]