18840844

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 37691136

約数和(自身を除く): 18850292

約数列:

[1, 2, 4, 11, 22, 37, 44, 71, 74, 142, 148, 163, 284, 326, 407, 652, 781, 814, 1562, 1628, 1793, 2627, 3124, 3586, 5254, 6031, 7172, 10508, 11573, 12062, 23146, 24124, 28897, 46292, 57794, 66341, 115588, 127303, 132682, 254606, 265364, 428201, 509212, 856402, 1712804, 4710211, 9420422, 18840844]

約数ペア:

[(1, 18840844), (2, 9420422), (4, 4710211), (11, 1712804), (22, 856402), (37, 509212), (44, 428201), (71, 265364), (74, 254606), (142, 132682), (148, 127303), (163, 115588), (284, 66341), (326, 57794), (407, 46292), (652, 28897), (781, 24124), (814, 23146), (1562, 12062), (1628, 11573), (1793, 10508), (2627, 7172), (3124, 6031), (3586, 5254)]