18818416

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{51137}}^1$

素因数の和:51168

約数の個数: 20

約数和(自身を含む): 38046672

約数和(自身を除く): 19228256

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 51137, 102274, 204548, 409096, 818192, 1176151, 2352302, 4704604, 9409208, 18818416]

約数ペア:

[(1, 18818416), (2, 9409208), (4, 4704604), (8, 2352302), (16, 1176151), (23, 818192), (46, 409096), (92, 204548), (184, 102274), (368, 51137)]