81856413

素因数分解:

$3^4\times {\mathrm{863}}^1\times {\mathrm{1171}}^1$

素因数の和:2046

約数の個数: 20

約数和(自身を含む): 122525568

約数和(自身を除く): 40669155

約数列:

[1, 3, 9, 27, 81, 863, 1171, 2589, 3513, 7767, 10539, 23301, 31617, 69903, 94851, 1010573, 3031719, 9095157, 27285471, 81856413]

約数ペア:

[(1, 81856413), (3, 27285471), (9, 9095157), (27, 3031719), (81, 1010573), (863, 94851), (1171, 69903), (2589, 31617), (3513, 23301), (7767, 10539)]