21740235

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131759}}^1$

素因数の和:131778

約数の個数: 16

約数和(自身を含む): 37946880

約数和(自身を除く): 16206645

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 131759, 395277, 658795, 1449349, 1976385, 4348047, 7246745, 21740235]

約数ペア:

[(1, 21740235), (3, 7246745), (5, 4348047), (11, 1976385), (15, 1449349), (33, 658795), (55, 395277), (165, 131759)]