243459

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:207

約数の個数: 16

約数和(自身を含む): 368640

約数和(自身を除く): 125181

約数列:

[1, 3, 9, 27, 71, 127, 213, 381, 639, 1143, 1917, 3429, 9017, 27051, 81153, 243459]

約数ペア:

[(1, 243459), (3, 81153), (9, 27051), (27, 9017), (71, 3429), (127, 1917), (213, 1143), (381, 639)]