81685721

素因数分解:

${\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{389}}^1\times {\mathrm{557}}^1$

素因数の和:988

約数の個数: 16

約数和(自身を含む): 91400400

約数和(自身を除く): 9714679

約数列:

[1, 13, 29, 377, 389, 557, 5057, 7241, 11281, 16153, 146653, 209989, 216673, 2816749, 6283517, 81685721]

約数ペア:

[(1, 81685721), (13, 6283517), (29, 2816749), (377, 216673), (389, 209989), (557, 146653), (5057, 16153), (7241, 11281)]