25665969

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^2\times {\mathrm{661}}^1$

素因数の和:757

約数の個数: 24

約数和(自身を含む): 40101312

約数和(自身を除く): 14435343

約数列:

[1, 3, 7, 21, 43, 129, 301, 661, 903, 1849, 1983, 4627, 5547, 12943, 13881, 28423, 38829, 85269, 198961, 596883, 1222189, 3666567, 8555323, 25665969]

約数ペア:

[(1, 25665969), (3, 8555323), (7, 3666567), (21, 1222189), (43, 596883), (129, 198961), (301, 85269), (661, 38829), (903, 28423), (1849, 13881), (1983, 12943), (4627, 5547)]