21795165

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{69191}}^1$

素因数の和:69209

約数の個数: 24

約数和(自身を含む): 43175808

約数和(自身を除く): 21380643

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 69191, 207573, 345955, 484337, 622719, 1037865, 1453011, 2421685, 3113595, 4359033, 7265055, 21795165]

約数ペア:

[(1, 21795165), (3, 7265055), (5, 4359033), (7, 3113595), (9, 2421685), (15, 1453011), (21, 1037865), (35, 622719), (45, 484337), (63, 345955), (105, 207573), (315, 69191)]