2687989

素因数分解:

${\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:236

約数の個数: 12

約数和(自身を含む): 2917728

約数和(自身を除く): 229739

約数列:

[1, 17, 71, 131, 289, 1207, 2227, 9301, 20519, 37859, 158117, 2687989]

約数ペア:

[(1, 2687989), (17, 158117), (71, 37859), (131, 20519), (289, 9301), (1207, 2227)]