21010865

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{3301}}^1$

素因数の和:3392

約数の個数: 16

約数和(自身を含む): 26944320

約数和(自身を除く): 5933455

約数列:

[1, 5, 19, 67, 95, 335, 1273, 3301, 6365, 16505, 62719, 221167, 313595, 1105835, 4202173, 21010865]

約数ペア:

[(1, 21010865), (5, 4202173), (19, 1105835), (67, 313595), (95, 221167), (335, 62719), (1273, 16505), (3301, 6365)]