20160820221

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1\times {\mathrm{6571}}^1$

素因数の和:6953

約数の個数: 32

約数和(自身を含む): 27954448896

約数和(自身を除く): 7793628675

約数列:

[1, 3, 37, 111, 131, 211, 393, 633, 4847, 6571, 7807, 14541, 19713, 23421, 27641, 82923, 243127, 729381, 860801, 1022717, 1386481, 2582403, 3068151, 4159443, 31849637, 51299797, 95548911, 153899391, 181629011, 544887033, 6720273407, 20160820221]

約数ペア:

[(1, 20160820221), (3, 6720273407), (37, 544887033), (111, 181629011), (131, 153899391), (211, 95548911), (393, 51299797), (633, 31849637), (4847, 4159443), (6571, 3068151), (7807, 2582403), (14541, 1386481), (19713, 1022717), (23421, 860801), (27641, 729381), (82923, 243127)]