12681904

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{18433}}^1$

素因数の和:18484

約数の個数: 20

約数和(自身を含む): 25143976

約数和(自身を除く): 12462072

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 18433, 36866, 73732, 147464, 294928, 792619, 1585238, 3170476, 6340952, 12681904]

約数ペア:

[(1, 12681904), (2, 6340952), (4, 3170476), (8, 1585238), (16, 792619), (43, 294928), (86, 147464), (172, 73732), (344, 36866), (688, 18433)]