257922009

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{180239}}^1$

素因数の和:180301

約数の個数: 16

約数和(自身を含む): 389318400

約数和(自身を除く): 131396391

約数列:

[1, 3, 9, 27, 53, 159, 477, 1431, 180239, 540717, 1622151, 4866453, 9552667, 28658001, 85974003, 257922009]

約数ペア:

[(1, 257922009), (3, 85974003), (9, 28658001), (27, 9552667), (53, 4866453), (159, 1622151), (477, 540717), (1431, 180239)]