81764221

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{4637}}^1$

素因数の和:4884

約数の個数: 16

約数和(自身を含む): 102407040

約数和(自身を除く): 20642819

約数列:

[1, 7, 11, 77, 229, 1603, 2519, 4637, 17633, 32459, 51007, 357049, 1061873, 7433111, 11680603, 81764221]

約数ペア:

[(1, 81764221), (7, 11680603), (11, 7433111), (77, 1061873), (229, 357049), (1603, 51007), (2519, 32459), (4637, 17633)]