21492289

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{2293}}^1$

素因数の和:2416

約数の個数: 16

約数和(自身を含む): 26720512

約数和(自身を除く): 5228223

約数列:

[1, 7, 13, 91, 103, 721, 1339, 2293, 9373, 16051, 29809, 208663, 236179, 1653253, 3070327, 21492289]

約数ペア:

[(1, 21492289), (7, 3070327), (13, 1653253), (91, 236179), (103, 208663), (721, 29809), (1339, 16051), (2293, 9373)]