21244535

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{1549}}^1$

素因数の和:1778

約数の個数: 16

約数和(自身を含む): 27602400

約数和(自身を除く): 6357865

約数列:

[1, 5, 13, 65, 211, 1055, 1549, 2743, 7745, 13715, 20137, 100685, 326839, 1634195, 4248907, 21244535]

約数ペア:

[(1, 21244535), (5, 4248907), (13, 1634195), (65, 326839), (211, 100685), (1055, 20137), (1549, 13715), (2743, 7745)]