20852008

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{38903}}^1$

素因数の和:38976

約数の個数: 16

約数和(自身を含む): 39682080

約数和(自身を除く): 18830072

約数列:

[1, 2, 4, 8, 67, 134, 268, 536, 38903, 77806, 155612, 311224, 2606501, 5213002, 10426004, 20852008]

約数ペア:

[(1, 20852008), (2, 10426004), (4, 5213002), (8, 2606501), (67, 311224), (134, 155612), (268, 77806), (536, 38903)]