81812591

素因数分解:

$7^1\times {\mathrm{103}}^1\times {\mathrm{233}}^1\times {\mathrm{487}}^1$

素因数の和:830

約数の個数: 16

約数和(自身を含む): 95007744

約数和(自身を除く): 13195153

約数列:

[1, 7, 103, 233, 487, 721, 1631, 3409, 23999, 50161, 113471, 167993, 351127, 794297, 11687513, 81812591]

約数ペア:

[(1, 81812591), (7, 11687513), (103, 794297), (233, 351127), (487, 167993), (721, 113471), (1631, 50161), (3409, 23999)]