20316976

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{30971}}^1$

素因数の和:31020

約数の個数: 20

約数和(自身を含む): 40325544

約数和(自身を除く): 20008568

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 30971, 61942, 123884, 247768, 495536, 1269811, 2539622, 5079244, 10158488, 20316976]

約数ペア:

[(1, 20316976), (2, 10158488), (4, 5079244), (8, 2539622), (16, 1269811), (41, 495536), (82, 247768), (164, 123884), (328, 61942), (656, 30971)]