208477953

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{80153}}^1$

素因数の和:80193

約数の個数: 18

約数和(自身を含む): 319894614

約数和(自身を除く): 111416661

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 80153, 240459, 721377, 1362601, 4087803, 12263409, 23164217, 69492651, 208477953]

約数ペア:

[(1, 208477953), (3, 69492651), (9, 23164217), (17, 12263409), (51, 4087803), (153, 1362601), (289, 721377), (867, 240459), (2601, 80153)]