81546021

素因数分解:

$3^4\times {\mathrm{199}}^1\times {\mathrm{5059}}^1$

素因数の和:5270

約数の個数: 20

約数和(自身を含む): 122452000

約数和(自身を除く): 40905979

約数列:

[1, 3, 9, 27, 81, 199, 597, 1791, 5059, 5373, 15177, 16119, 45531, 136593, 409779, 1006741, 3020223, 9060669, 27182007, 81546021]

約数ペア:

[(1, 81546021), (3, 27182007), (9, 9060669), (27, 3020223), (81, 1006741), (199, 409779), (597, 136593), (1791, 45531), (5059, 16119), (5373, 15177)]