20952911

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{461}}^1$

素因数の和:662

約数の個数: 16

約数和(自身を含む): 24718848

約数和(自身を除く): 3765937

約数列:

[1, 7, 43, 151, 301, 461, 1057, 3227, 6493, 19823, 45451, 69611, 138761, 487277, 2993273, 20952911]

約数ペア:

[(1, 20952911), (7, 2993273), (43, 487277), (151, 138761), (301, 69611), (461, 45451), (1057, 19823), (3227, 6493)]