257788143

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{4447}}^1$

素因数の和:4588

約数の個数: 32

約数和(自身を含む): 405657600

約数和(自身を除く): 147869457

約数列:

[1, 3, 9, 19, 27, 57, 113, 171, 339, 513, 1017, 2147, 3051, 4447, 6441, 13341, 19323, 40023, 57969, 84493, 120069, 253479, 502511, 760437, 1507533, 2281311, 4522599, 9547709, 13567797, 28643127, 85929381, 257788143]

約数ペア:

[(1, 257788143), (3, 85929381), (9, 28643127), (19, 13567797), (27, 9547709), (57, 4522599), (113, 2281311), (171, 1507533), (339, 760437), (513, 502511), (1017, 253479), (2147, 120069), (3051, 84493), (4447, 57969), (6441, 40023), (13341, 19323)]