20462281

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{433}}^1$

素因数の和:640

約数の個数: 16

約数和(自身を含む): 24137344

約数和(自身を除く): 3675063

約数列:

[1, 7, 43, 157, 301, 433, 1099, 3031, 6751, 18619, 47257, 67981, 130333, 475867, 2923183, 20462281]

約数ペア:

[(1, 20462281), (7, 2923183), (43, 475867), (157, 130333), (301, 67981), (433, 47257), (1099, 18619), (3031, 6751)]