18891004

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{1697}}^1$

素因数の和:1746

約数の個数: 36

約数和(自身を含む): 37940112

約数和(自身を除く): 19049108

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 121, 242, 253, 484, 506, 1012, 1697, 2783, 3394, 5566, 6788, 11132, 18667, 37334, 39031, 74668, 78062, 156124, 205337, 410674, 429341, 821348, 858682, 1717364, 4722751, 9445502, 18891004]

約数ペア:

[(1, 18891004), (2, 9445502), (4, 4722751), (11, 1717364), (22, 858682), (23, 821348), (44, 429341), (46, 410674), (92, 205337), (121, 156124), (242, 78062), (253, 74668), (484, 39031), (506, 37334), (1012, 18667), (1697, 11132), (2783, 6788), (3394, 5566)]