20684336

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{31531}}^1$

素因数の和:31580

約数の個数: 20

約数和(自身を含む): 41054664

約数和(自身を除く): 20370328

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 31531, 63062, 126124, 252248, 504496, 1292771, 2585542, 5171084, 10342168, 20684336]

約数ペア:

[(1, 20684336), (2, 10342168), (4, 5171084), (8, 2585542), (16, 1292771), (41, 504496), (82, 252248), (164, 126124), (328, 63062), (656, 31531)]