245619459

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{42709}}^1$

素因数の和:42792

約数の個数: 20

約数和(自身を含む): 372089520

約数和(自身を除く): 126470061

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 5751, 42709, 128127, 384381, 1153143, 3032339, 3459429, 9097017, 27291051, 81873153, 245619459]

約数ペア:

[(1, 245619459), (3, 81873153), (9, 27291051), (27, 9097017), (71, 3459429), (81, 3032339), (213, 1153143), (639, 384381), (1917, 128127), (5751, 42709)]