81291001

素因数分解:

${\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{151}}^1\times {\mathrm{449}}^1$

素因数の和:720

約数の個数: 16

約数和(自身を含む): 90288000

約数和(自身を除く): 8996999

約数列:

[1, 11, 109, 151, 449, 1199, 1661, 4939, 16459, 48941, 67799, 181049, 538351, 745789, 7390091, 81291001]

約数ペア:

[(1, 81291001), (11, 7390091), (109, 745789), (151, 538351), (449, 181049), (1199, 67799), (1661, 48941), (4939, 16459)]