21061085

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{1447}}^1$

素因数の和:1564

約数の個数: 16

約数和(自身を含む): 26272512

約数和(自身を除く): 5211427

約数列:

[1, 5, 41, 71, 205, 355, 1447, 2911, 7235, 14555, 59327, 102737, 296635, 513685, 4212217, 21061085]

約数ペア:

[(1, 21061085), (5, 4212217), (41, 513685), (71, 296635), (205, 102737), (355, 59327), (1447, 14555), (2911, 7235)]