25528203

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{18539}}^1$

素因数の和:18568

約数の個数: 20

約数和(自身を含む): 40380120

約数和(自身を除く): 14851917

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 18539, 55617, 166851, 315163, 500553, 945489, 1501659, 2836467, 8509401, 25528203]

約数ペア:

[(1, 25528203), (3, 8509401), (9, 2836467), (17, 1501659), (27, 945489), (51, 500553), (81, 315163), (153, 166851), (459, 55617), (1377, 18539)]