18918836

素因数分解:

$2^2\times {\mathrm{503}}^1\times {\mathrm{9403}}^1$

素因数の和:9910

約数の個数: 12

約数和(自身を含む): 33177312

約数和(自身を除く): 14258476

約数列:

[1, 2, 4, 503, 1006, 2012, 9403, 18806, 37612, 4729709, 9459418, 18918836]

約数ペア:

[(1, 18918836), (2, 9459418), (4, 4729709), (503, 37612), (1006, 18806), (2012, 9403)]