21719180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{155137}}^1$

素因数の和:155153

約数の個数: 24

約数和(自身を含む): 52126368

約数和(自身を除く): 30407188

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 155137, 310274, 620548, 775685, 1085959, 1551370, 2171918, 3102740, 4343836, 5429795, 10859590, 21719180]

約数ペア:

[(1, 21719180), (2, 10859590), (4, 5429795), (5, 4343836), (7, 3102740), (10, 2171918), (14, 1551370), (20, 1085959), (28, 775685), (35, 620548), (70, 310274), (140, 155137)]