20565394269

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{139721}}^1$

素因数の和:139937

約数の個数: 32

約数和(自身を含む): 32263486464

約数和(自身を除く): 11698092195

約数列:

[1, 3, 7, 21, 43, 129, 163, 301, 489, 903, 1141, 3423, 7009, 21027, 49063, 139721, 147189, 419163, 978047, 2934141, 6008003, 18024009, 22774523, 42056021, 68323569, 126168063, 159421661, 478264983, 979304489, 2937913467, 6855131423, 20565394269]

約数ペア:

[(1, 20565394269), (3, 6855131423), (7, 2937913467), (21, 979304489), (43, 478264983), (129, 159421661), (163, 126168063), (301, 68323569), (489, 42056021), (903, 22774523), (1141, 18024009), (3423, 6008003), (7009, 2934141), (21027, 978047), (49063, 419163), (139721, 147189)]