21339187009

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{510031}}^1$

素因数の和:510220

約数の個数: 16

約数和(自身を含む): 25134376960

約数和(自身を除く): 3795189951

約数列:

[1, 7, 43, 139, 301, 973, 5977, 41839, 510031, 3570217, 21931333, 70894309, 153519331, 496260163, 3048455287, 21339187009]

約数ペア:

[(1, 21339187009), (7, 3048455287), (43, 496260163), (139, 153519331), (301, 70894309), (973, 21931333), (5977, 3570217), (41839, 510031)]