21901588

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{191}}^1\times {\mathrm{263}}^1$

素因数の和:567

約数の個数: 24

約数和(自身を含む): 39029760

約数和(自身を除く): 17128172

約数列:

[1, 2, 4, 109, 191, 218, 263, 382, 436, 526, 764, 1052, 20819, 28667, 41638, 50233, 57334, 83276, 100466, 114668, 200932, 5475397, 10950794, 21901588]

約数ペア:

[(1, 21901588), (2, 10950794), (4, 5475397), (109, 200932), (191, 114668), (218, 100466), (263, 83276), (382, 57334), (436, 50233), (526, 41638), (764, 28667), (1052, 20819)]