81266157

素因数分解:

$3^2\times 7^2\times {\mathrm{127}}^1\times {\mathrm{1451}}^1$

素因数の和:1598

約数の個数: 36

約数和(自身を含む): 137719296

約数和(自身を除く): 56453139

約数列:

[1, 3, 7, 9, 21, 49, 63, 127, 147, 381, 441, 889, 1143, 1451, 2667, 4353, 6223, 8001, 10157, 13059, 18669, 30471, 56007, 71099, 91413, 184277, 213297, 552831, 639891, 1289939, 1658493, 3869817, 9029573, 11609451, 27088719, 81266157]

約数ペア:

[(1, 81266157), (3, 27088719), (7, 11609451), (9, 9029573), (21, 3869817), (49, 1658493), (63, 1289939), (127, 639891), (147, 552831), (381, 213297), (441, 184277), (889, 91413), (1143, 71099), (1451, 56007), (2667, 30471), (4353, 18669), (6223, 13059), (8001, 10157)]