20514291

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{8209}}^1$

素因数の和:8243

約数の個数: 24

約数和(自身を含む): 33693840

約数和(自身を除く): 13179549

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 8209, 24627, 57463, 139553, 172389, 402241, 418659, 976871, 1206723, 2930613, 6838097, 20514291]

約数ペア:

[(1, 20514291), (3, 6838097), (7, 2930613), (17, 1206723), (21, 976871), (49, 418659), (51, 402241), (119, 172389), (147, 139553), (357, 57463), (833, 24627), (2499, 8209)]