20318283

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{3533}}^1$

素因数の和:3616

約数の個数: 20

約数和(自身を含む): 30788208

約数和(自身を除く): 10469925

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 3533, 5751, 10599, 31797, 95391, 250843, 286173, 752529, 2257587, 6772761, 20318283]

約数ペア:

[(1, 20318283), (3, 6772761), (9, 2257587), (27, 752529), (71, 286173), (81, 250843), (213, 95391), (639, 31797), (1917, 10599), (3533, 5751)]