18884912

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{27449}}^1$

素因数の和:27500

約数の個数: 20

約数和(自身を含む): 37441800

約数和(自身を除く): 18556888

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 27449, 54898, 109796, 219592, 439184, 1180307, 2360614, 4721228, 9442456, 18884912]

約数ペア:

[(1, 18884912), (2, 9442456), (4, 4721228), (8, 2360614), (16, 1180307), (43, 439184), (86, 219592), (172, 109796), (344, 54898), (688, 27449)]