128177559

素因数分解:

$3^4\times {\mathrm{59}}^1\times {\mathrm{26821}}^1$

素因数の和:26892

約数の個数: 20

約数和(自身を含む): 194727720

約数和(自身を除く): 66550161

約数列:

[1, 3, 9, 27, 59, 81, 177, 531, 1593, 4779, 26821, 80463, 241389, 724167, 1582439, 2172501, 4747317, 14241951, 42725853, 128177559]

約数ペア:

[(1, 128177559), (3, 42725853), (9, 14241951), (27, 4747317), (59, 2172501), (81, 1582439), (177, 724167), (531, 241389), (1593, 80463), (4779, 26821)]