25806519

素因数分解:

$3^4\times {\mathrm{199}}^1\times {\mathrm{1601}}^1$

素因数の和:1812

約数の個数: 20

約数和(自身を含む): 38768400

約数和(自身を除く): 12961881

約数列:

[1, 3, 9, 27, 81, 199, 597, 1601, 1791, 4803, 5373, 14409, 16119, 43227, 129681, 318599, 955797, 2867391, 8602173, 25806519]

約数ペア:

[(1, 25806519), (3, 8602173), (9, 2867391), (27, 955797), (81, 318599), (199, 129681), (597, 43227), (1601, 16119), (1791, 14409), (4803, 5373)]