20991612

素因数分解:

$2^2\times 3^1\times {\mathrm{863}}^1\times {\mathrm{2027}}^1$

素因数の和:2897

約数の個数: 24

約数和(自身を含む): 49061376

約数和(自身を除く): 28069764

約数列:

[1, 2, 3, 4, 6, 12, 863, 1726, 2027, 2589, 3452, 4054, 5178, 6081, 8108, 10356, 12162, 24324, 1749301, 3498602, 5247903, 6997204, 10495806, 20991612]

約数ペア:

[(1, 20991612), (2, 10495806), (3, 6997204), (4, 5247903), (6, 3498602), (12, 1749301), (863, 24324), (1726, 12162), (2027, 10356), (2589, 8108), (3452, 6081), (4054, 5178)]