257587569

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{227}}^1\times {\mathrm{2137}}^1$

素因数の和:2429

約数の個数: 24

約数和(自身を含む): 380221920

約数和(自身を除く): 122634351

約数列:

[1, 3, 9, 59, 177, 227, 531, 681, 2043, 2137, 6411, 13393, 19233, 40179, 120537, 126083, 378249, 485099, 1134747, 1455297, 4365891, 28620841, 85862523, 257587569]

約数ペア:

[(1, 257587569), (3, 85862523), (9, 28620841), (59, 4365891), (177, 1455297), (227, 1134747), (531, 485099), (681, 378249), (2043, 126083), (2137, 120537), (6411, 40179), (13393, 19233)]