81211459

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{509}}^1\times {\mathrm{991}}^1$

素因数の和:1530

約数の個数: 16

約数和(自身を含む): 97136640

約数和(自身を除く): 15925181

約数列:

[1, 7, 23, 161, 509, 991, 3563, 6937, 11707, 22793, 81949, 159551, 504419, 3530933, 11601637, 81211459]

約数ペア:

[(1, 81211459), (7, 11601637), (23, 3530933), (161, 504419), (509, 159551), (991, 81949), (3563, 22793), (6937, 11707)]