81640131

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{20173}}^1$

素因数の和:20266

約数の個数: 16

約数和(自身を含む): 116202240

約数和(自身を除く): 34562109

約数列:

[1, 3, 19, 57, 71, 213, 1349, 4047, 20173, 60519, 383287, 1149861, 1432283, 4296849, 27213377, 81640131]

約数ペア:

[(1, 81640131), (3, 27213377), (19, 4296849), (57, 1432283), (71, 1149861), (213, 383287), (1349, 60519), (4047, 20173)]