31720167

素因数分解:

$3^4\times {\mathrm{263}}^1\times {\mathrm{1489}}^1$

素因数の和:1764

約数の個数: 20

約数和(自身を含む): 47596560

約数和(自身を除く): 15876393

約数列:

[1, 3, 9, 27, 81, 263, 789, 1489, 2367, 4467, 7101, 13401, 21303, 40203, 120609, 391607, 1174821, 3524463, 10573389, 31720167]

約数ペア:

[(1, 31720167), (3, 10573389), (9, 3524463), (27, 1174821), (81, 391607), (263, 120609), (789, 40203), (1489, 21303), (2367, 13401), (4467, 7101)]