21740205

素因数分解:

$3^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{4721}}^1$

素因数の和:5036

約数の個数: 16

約数和(自身を含む): 34905024

約数和(自身を除く): 13164819

約数列:

[1, 3, 5, 15, 307, 921, 1535, 4605, 4721, 14163, 23605, 70815, 1449347, 4348041, 7246735, 21740205]

約数ペア:

[(1, 21740205), (3, 7246735), (5, 4348041), (15, 1449347), (307, 70815), (921, 23605), (1535, 14163), (4605, 4721)]