257130909

素因数分解:

$3^3\times 7^1\times {\mathrm{59}}^1\times {\mathrm{23059}}^1$

素因数の和:23134

約数の個数: 32

約数和(自身を含む): 442752000

約数和(自身を除く): 185621091

約数列:

[1, 3, 7, 9, 21, 27, 59, 63, 177, 189, 413, 531, 1239, 1593, 3717, 11151, 23059, 69177, 161413, 207531, 484239, 622593, 1360481, 1452717, 4081443, 4358151, 9523367, 12244329, 28570101, 36732987, 85710303, 257130909]

約数ペア:

[(1, 257130909), (3, 85710303), (7, 36732987), (9, 28570101), (21, 12244329), (27, 9523367), (59, 4358151), (63, 4081443), (177, 1452717), (189, 1360481), (413, 622593), (531, 484239), (1239, 207531), (1593, 161413), (3717, 69177), (11151, 23059)]