80821279

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{17207}}^1$

素因数の和:17286

約数の個数: 16

約数和(自身を含む): 102422016

約数和(自身を除く): 21600737

約数列:

[1, 7, 11, 61, 77, 427, 671, 4697, 17207, 120449, 189277, 1049627, 1324939, 7347389, 11545897, 80821279]

約数ペア:

[(1, 80821279), (7, 11545897), (11, 7347389), (61, 1324939), (77, 1049627), (427, 189277), (671, 120449), (4697, 17207)]