20307511

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{461}}^1$

素因数の和:535

約数の個数: 24

約数和(自身を含む): 25280640

約数和(自身を除く): 4973129

約数列:

[1, 7, 29, 31, 49, 203, 217, 461, 899, 1421, 1519, 3227, 6293, 13369, 14291, 22589, 44051, 93583, 100037, 414439, 655081, 700259, 2901073, 20307511]

約数ペア:

[(1, 20307511), (7, 2901073), (29, 700259), (31, 655081), (49, 414439), (203, 100037), (217, 93583), (461, 44051), (899, 22589), (1421, 14291), (1519, 13369), (3227, 6293)]