21964180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{156887}}^1$

素因数の和:156903

約数の個数: 24

約数和(自身を含む): 52714368

約数和(自身を除く): 30750188

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 156887, 313774, 627548, 784435, 1098209, 1568870, 2196418, 3137740, 4392836, 5491045, 10982090, 21964180]

約数ペア:

[(1, 21964180), (2, 10982090), (4, 5491045), (5, 4392836), (7, 3137740), (10, 2196418), (14, 1568870), (20, 1098209), (28, 784435), (35, 627548), (70, 313774), (140, 156887)]