81181639

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{461}}^1\times {\mathrm{2287}}^1$

素因数の和:2766

約数の個数: 16

約数和(自身を含む): 101477376

約数和(自身を除く): 20295737

約数列:

[1, 7, 11, 77, 461, 2287, 3227, 5071, 16009, 25157, 35497, 176099, 1054307, 7380149, 11597377, 81181639]

約数ペア:

[(1, 81181639), (7, 11597377), (11, 7380149), (77, 1054307), (461, 176099), (2287, 35497), (3227, 25157), (5071, 16009)]