21627664

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{32969}}^1$

素因数の和:33018

約数の個数: 20

約数和(自身を含む): 42926940

約数和(自身を除く): 21299276

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 32969, 65938, 131876, 263752, 527504, 1351729, 2703458, 5406916, 10813832, 21627664]

約数ペア:

[(1, 21627664), (2, 10813832), (4, 5406916), (8, 2703458), (16, 1351729), (41, 527504), (82, 263752), (164, 131876), (328, 65938), (656, 32969)]