81273787

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{4523}}^1$

素因数の和:4698

約数の個数: 16

約数和(自身を含む): 99021312

約数和(自身を除く): 17747525

約数列:

[1, 7, 17, 119, 151, 1057, 2567, 4523, 17969, 31661, 76891, 538237, 682973, 4780811, 11610541, 81273787]

約数ペア:

[(1, 81273787), (7, 11610541), (17, 4780811), (119, 682973), (151, 538237), (1057, 76891), (2567, 31661), (4523, 17969)]