55871221

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{30817}}^1$

素因数の和:30868

約数の個数: 12

約数和(自身を含む): 66751788

約数和(自身を除く): 10880567

約数列:

[1, 7, 37, 49, 259, 1813, 30817, 215719, 1140229, 1510033, 7981603, 55871221]

約数ペア:

[(1, 55871221), (7, 7981603), (37, 1510033), (49, 1140229), (259, 215719), (1813, 30817)]