19437740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{138841}}^1$

素因数の和:138857

約数の個数: 24

約数和(自身を含む): 46650912

約数和(自身を除く): 27213172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 138841, 277682, 555364, 694205, 971887, 1388410, 1943774, 2776820, 3887548, 4859435, 9718870, 19437740]

約数ペア:

[(1, 19437740), (2, 9718870), (4, 4859435), (5, 3887548), (7, 2776820), (10, 1943774), (14, 1388410), (20, 971887), (28, 694205), (35, 555364), (70, 277682), (140, 138841)]