21424191

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{8741}}^1$

素因数の和:8806

約数の個数: 16

約数和(自身を含む): 30771840

約数和(自身を除く): 9347649

約数列:

[1, 3, 19, 43, 57, 129, 817, 2451, 8741, 26223, 166079, 375863, 498237, 1127589, 7141397, 21424191]

約数ペア:

[(1, 21424191), (3, 7141397), (19, 1127589), (43, 498237), (57, 375863), (129, 166079), (817, 26223), (2451, 8741)]