2018991359

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1699}}^1$

素因数の和:1812

約数の個数: 48

約数和(自身を含む): 2691494400

約数和(自身を除く): 672503041

約数列:

[1, 7, 11, 23, 61, 77, 121, 161, 253, 427, 671, 847, 1403, 1699, 1771, 2783, 4697, 7381, 9821, 11893, 15433, 18689, 19481, 39077, 51667, 103639, 108031, 130823, 169763, 205579, 273539, 429847, 725473, 1140029, 1188341, 1439053, 2383697, 3008929, 4728317, 7980203, 12540319, 16685879, 26220667, 33098219, 87782233, 183544669, 288427337, 2018991359]

約数ペア:

[(1, 2018991359), (7, 288427337), (11, 183544669), (23, 87782233), (61, 33098219), (77, 26220667), (121, 16685879), (161, 12540319), (253, 7980203), (427, 4728317), (671, 3008929), (847, 2383697), (1403, 1439053), (1699, 1188341), (1771, 1140029), (2783, 725473), (4697, 429847), (7381, 273539), (9821, 205579), (11893, 169763), (15433, 130823), (18689, 108031), (19481, 103639), (39077, 51667)]