81591567

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{20161}}^1$

素因数の和:20254

約数の個数: 16

約数和(自身を含む): 116133120

約数和(自身を除く): 34541553

約数列:

[1, 3, 19, 57, 71, 213, 1349, 4047, 20161, 60483, 383059, 1149177, 1431431, 4294293, 27197189, 81591567]

約数ペア:

[(1, 81591567), (3, 27197189), (19, 4294293), (57, 1431431), (71, 1149177), (213, 383059), (1349, 60483), (4047, 20161)]