27891227

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{9887}}^1$

素因数の和:9938

約数の個数: 16

約数和(自身を含む): 35438592

約数和(自身を除く): 7547365

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 9887, 69209, 128531, 306497, 899717, 2145479, 3984461, 27891227]

約数ペア:

[(1, 27891227), (7, 3984461), (13, 2145479), (31, 899717), (91, 306497), (217, 128531), (403, 69209), (2821, 9887)]