21208624

素因数分解:

$2^4\times {\mathrm{199}}^1\times {\mathrm{6661}}^1$

素因数の和:6868

約数の個数: 20

約数和(自身を含む): 41304400

約数和(自身を除く): 20095776

約数列:

[1, 2, 4, 8, 16, 199, 398, 796, 1592, 3184, 6661, 13322, 26644, 53288, 106576, 1325539, 2651078, 5302156, 10604312, 21208624]

約数ペア:

[(1, 21208624), (2, 10604312), (4, 5302156), (8, 2651078), (16, 1325539), (199, 106576), (398, 53288), (796, 26644), (1592, 13322), (3184, 6661)]