81378379

素因数分解:

${\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{691}}^1$

素因数の和:882

約数の個数: 16

約数和(自身を含む): 87690240

約数和(自身を除く): 6311861

約数列:

[1, 29, 31, 131, 691, 899, 3799, 4061, 20039, 21421, 90521, 117769, 621209, 2625109, 2806151, 81378379]

約数ペア:

[(1, 81378379), (29, 2806151), (31, 2625109), (131, 621209), (691, 117769), (899, 90521), (3799, 21421), (4061, 20039)]