90207887

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{31663}}^1$

素因数の和:31718

約数の個数: 16

約数和(自身を含む): 115510272

約数和(自身を除く): 25302385

約数列:

[1, 7, 11, 37, 77, 259, 407, 2849, 31663, 221641, 348293, 1171531, 2438051, 8200717, 12886841, 90207887]

約数ペア:

[(1, 90207887), (7, 12886841), (11, 8200717), (37, 2438051), (77, 1171531), (259, 348293), (407, 221641), (2849, 31663)]