81383897

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{19739}}^1$

素因数の和:19796

約数の個数: 16

約数和(自身を含む): 101068800

約数和(自身を除く): 19684903

約数列:

[1, 7, 19, 31, 133, 217, 589, 4123, 19739, 138173, 375041, 611909, 2625287, 4283363, 11626271, 81383897]

約数ペア:

[(1, 81383897), (7, 11626271), (19, 4283363), (31, 2625287), (133, 611909), (217, 375041), (589, 138173), (4123, 19739)]