20951704

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{39089}}^1$

素因数の和:39162

約数の個数: 16

約数和(自身を含む): 39871800

約数和(自身を除く): 18920096

約数列:

[1, 2, 4, 8, 67, 134, 268, 536, 39089, 78178, 156356, 312712, 2618963, 5237926, 10475852, 20951704]

約数ペア:

[(1, 20951704), (2, 10475852), (4, 5237926), (8, 2618963), (67, 312712), (134, 156356), (268, 78178), (536, 39089)]