257667021

素因数分解:

$3^3\times {\mathrm{107}}^1\times {\mathrm{89189}}^1$

素因数の和:89305

約数の個数: 16

約数和(自身を含む): 385300800

約数和(自身を除く): 127633779

約数列:

[1, 3, 9, 27, 107, 321, 963, 2889, 89189, 267567, 802701, 2408103, 9543223, 28629669, 85889007, 257667021]

約数ペア:

[(1, 257667021), (3, 85889007), (9, 28629669), (27, 9543223), (107, 2408103), (321, 802701), (963, 267567), (2889, 89189)]