18663376

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{27127}}^1$

素因数の和:27178

約数の個数: 20

約数和(自身を含む): 37002592

約数和(自身を除く): 18339216

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 27127, 54254, 108508, 217016, 434032, 1166461, 2332922, 4665844, 9331688, 18663376]

約数ペア:

[(1, 18663376), (2, 9331688), (4, 4665844), (8, 2332922), (16, 1166461), (43, 434032), (86, 217016), (172, 108508), (344, 54254), (688, 27127)]