21961855

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{719}}^1$

素因数の和:914

約数の個数: 16

約数和(自身を含む): 27216000

約数和(自身を除く): 5254145

約数列:

[1, 5, 41, 149, 205, 719, 745, 3595, 6109, 29479, 30545, 107131, 147395, 535655, 4392371, 21961855]

約数ペア:

[(1, 21961855), (5, 4392371), (41, 535655), (149, 147395), (205, 107131), (719, 30545), (745, 29479), (3595, 6109)]