80409441

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{12721}}^1$

素因数の和:12781

約数の個数: 24

約数和(自身を含む): 127627104

約数和(自身を除く): 47217663

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 2107, 6321, 12721, 38163, 89047, 267141, 547003, 623329, 1641009, 1869987, 3829021, 11487063, 26803147, 80409441]

約数ペア:

[(1, 80409441), (3, 26803147), (7, 11487063), (21, 3829021), (43, 1869987), (49, 1641009), (129, 623329), (147, 547003), (301, 267141), (903, 89047), (2107, 38163), (6321, 12721)]