20956136

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{60919}}^1$

素因数の和:60968

約数の個数: 16

約数和(自身を含む): 40207200

約数和(自身を除く): 19251064

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 60919, 121838, 243676, 487352, 2619517, 5239034, 10478068, 20956136]

約数ペア:

[(1, 20956136), (2, 10478068), (4, 5239034), (8, 2619517), (43, 487352), (86, 243676), (172, 121838), (344, 60919)]