18868881

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{3037}}^1$

素因数の和:3168

約数の個数: 16

約数和(自身を含む): 26734400

約数和(自身を除く): 7865519

約数列:

[1, 3, 19, 57, 109, 327, 2071, 3037, 6213, 9111, 57703, 173109, 331033, 993099, 6289627, 18868881]

約数ペア:

[(1, 18868881), (3, 6289627), (19, 993099), (57, 331033), (109, 173109), (327, 57703), (2071, 9111), (3037, 6213)]