20605185

素因数分解:

$3^6\times 5^1\times {\mathrm{5653}}^1$

素因数の和:5676

約数の個数: 28

約数和(自身を含む): 37078932

約数和(自身を除く): 16473747

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 5653, 16959, 28265, 50877, 84795, 152631, 254385, 457893, 763155, 1373679, 2289465, 4121037, 6868395, 20605185]

約数ペア:

[(1, 20605185), (3, 6868395), (5, 4121037), (9, 2289465), (15, 1373679), (27, 763155), (45, 457893), (81, 254385), (135, 152631), (243, 84795), (405, 50877), (729, 28265), (1215, 16959), (3645, 5653)]