21513755277

素因数分解:

$3^4\times 7^1\times {\mathrm{199}}^1\times {\mathrm{190669}}^1$

素因数の和:190887

約数の個数: 40

約数和(自身を含む): 36913712000

約数和(自身を除く): 15399956723

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 199, 567, 597, 1393, 1791, 4179, 5373, 12537, 16119, 37611, 112833, 190669, 572007, 1334683, 1716021, 4004049, 5148063, 12012147, 15444189, 36036441, 37943131, 108109323, 113829393, 265601917, 341488179, 796805751, 1024464537, 2390417253, 3073393611, 7171251759, 21513755277]

約数ペア:

[(1, 21513755277), (3, 7171251759), (7, 3073393611), (9, 2390417253), (21, 1024464537), (27, 796805751), (63, 341488179), (81, 265601917), (189, 113829393), (199, 108109323), (567, 37943131), (597, 36036441), (1393, 15444189), (1791, 12012147), (4179, 5148063), (5373, 4004049), (12537, 1716021), (16119, 1334683), (37611, 572007), (112833, 190669)]