18786128

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{8447}}^1$

素因数の和:8594

約数の個数: 20

約数和(自身を含む): 36664320

約数和(自身を除く): 17878192

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 8447, 16894, 33788, 67576, 135152, 1174133, 2348266, 4696532, 9393064, 18786128]

約数ペア:

[(1, 18786128), (2, 9393064), (4, 4696532), (8, 2348266), (16, 1174133), (139, 135152), (278, 67576), (556, 33788), (1112, 16894), (2224, 8447)]