20439307

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{677}}^1$

素因数の和:930

約数の個数: 16

約数和(自身を含む): 24733440

約数和(自身を除く): 4294133

約数列:

[1, 7, 19, 133, 227, 677, 1589, 4313, 4739, 12863, 30191, 90041, 153679, 1075753, 2919901, 20439307]

約数ペア:

[(1, 20439307), (7, 2919901), (19, 1075753), (133, 153679), (227, 90041), (677, 30191), (1589, 12863), (4313, 4739)]