206857293

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{20663}}^1$

素因数の和:20784

約数の個数: 16

約数和(自身を含む): 285659136

約数和(自身を除く): 78801843

約数列:

[1, 3, 47, 71, 141, 213, 3337, 10011, 20663, 61989, 971161, 1467073, 2913483, 4401219, 68952431, 206857293]

約数ペア:

[(1, 206857293), (3, 68952431), (47, 4401219), (71, 2913483), (141, 1467073), (213, 971161), (3337, 61989), (10011, 20663)]