64721319

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{11939}}^1$

素因数の和:12094

約数の個数: 16

約数和(自身を含む): 93609600

約数和(自身を除く): 28888281

約数列:

[1, 3, 13, 39, 139, 417, 1807, 5421, 11939, 35817, 155207, 465621, 1659521, 4978563, 21573773, 64721319]

約数ペア:

[(1, 64721319), (3, 21573773), (13, 4978563), (39, 1659521), (139, 465621), (417, 155207), (1807, 35817), (5421, 11939)]