16405902081

素因数分解:

$3^4\times {\mathrm{199}}^1\times {\mathrm{1017799}}^1$

素因数の和:1018010

約数の個数: 20

約数和(自身を含む): 24630760000

約数和(自身を除く): 8224857919

約数列:

[1, 3, 9, 27, 81, 199, 597, 1791, 5373, 16119, 1017799, 3053397, 9160191, 27480573, 82441719, 202542001, 607626003, 1822878009, 5468634027, 16405902081]

約数ペア:

[(1, 16405902081), (3, 5468634027), (9, 1822878009), (27, 607626003), (81, 202542001), (199, 82441719), (597, 27480573), (1791, 9160191), (5373, 3053397), (16119, 1017799)]