81428809

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{45979}}^1$

素因数の和:46020

約数の個数: 16

約数和(自身を含む): 105937920

約数和(自身を除く): 24509111

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 45979, 321853, 505769, 1057517, 3540383, 7402619, 11632687, 81428809]

約数ペア:

[(1, 81428809), (7, 11632687), (11, 7402619), (23, 3540383), (77, 1057517), (161, 505769), (253, 321853), (1771, 45979)]