21038416

素因数分解:

$2^4\times 7^1\times {\mathrm{187843}}^1$

素因数の和:187858

約数の個数: 20

約数和(自身を含む): 46585312

約数和(自身を除く): 25546896

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 187843, 375686, 751372, 1314901, 1502744, 2629802, 3005488, 5259604, 10519208, 21038416]

約数ペア:

[(1, 21038416), (2, 10519208), (4, 5259604), (7, 3005488), (8, 2629802), (14, 1502744), (16, 1314901), (28, 751372), (56, 375686), (112, 187843)]