18216784

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{8191}}^1$

素因数の和:8338

約数の個数: 20

約数和(自身を含む): 35553280

約数和(自身を除く): 17336496

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 8191, 16382, 32764, 65528, 131056, 1138549, 2277098, 4554196, 9108392, 18216784]

約数ペア:

[(1, 18216784), (2, 9108392), (4, 4554196), (8, 2277098), (16, 1138549), (139, 131056), (278, 65528), (556, 32764), (1112, 16382), (2224, 8191)]