20243685

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1031}}^1$

素因数の和:1074

約数の個数: 64

約数和(自身を含む): 42799104

約数和(自身を除く): 22555419

約数列:

[1, 3, 5, 7, 11, 15, 17, 21, 33, 35, 51, 55, 77, 85, 105, 119, 165, 187, 231, 255, 357, 385, 561, 595, 935, 1031, 1155, 1309, 1785, 2805, 3093, 3927, 5155, 6545, 7217, 11341, 15465, 17527, 19635, 21651, 34023, 36085, 52581, 56705, 79387, 87635, 108255, 122689, 170115, 192797, 238161, 262905, 368067, 396935, 578391, 613445, 963985, 1190805, 1349579, 1840335, 2891955, 4048737, 6747895, 20243685]

約数ペア:

[(1, 20243685), (3, 6747895), (5, 4048737), (7, 2891955), (11, 1840335), (15, 1349579), (17, 1190805), (21, 963985), (33, 613445), (35, 578391), (51, 396935), (55, 368067), (77, 262905), (85, 238161), (105, 192797), (119, 170115), (165, 122689), (187, 108255), (231, 87635), (255, 79387), (357, 56705), (385, 52581), (561, 36085), (595, 34023), (935, 21651), (1031, 19635), (1155, 17527), (1309, 15465), (1785, 11341), (2805, 7217), (3093, 6545), (3927, 5155)]