81650639

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{4007}}^1$

素因数の和:4126

約数の個数: 16

約数和(自身を含む): 96961536

約数和(自身を除く): 15310897

約数列:

[1, 7, 41, 71, 287, 497, 2911, 4007, 20377, 28049, 164287, 284497, 1150009, 1991479, 11664377, 81650639]

約数ペア:

[(1, 81650639), (7, 11664377), (41, 1991479), (71, 1150009), (287, 284497), (497, 164287), (2911, 28049), (4007, 20377)]