20907418

素因数分解:

$2^1\times 7^2\times {\mathrm{317}}^1\times {\mathrm{673}}^1$

素因数の和:1006

約数の個数: 24

約数和(自身を含む): 36650772

約数和(自身を除く): 15743354

約数列:

[1, 2, 7, 14, 49, 98, 317, 634, 673, 1346, 2219, 4438, 4711, 9422, 15533, 31066, 32977, 65954, 213341, 426682, 1493387, 2986774, 10453709, 20907418]

約数ペア:

[(1, 20907418), (2, 10453709), (7, 2986774), (14, 1493387), (49, 426682), (98, 213341), (317, 65954), (634, 32977), (673, 31066), (1346, 15533), (2219, 9422), (4438, 4711)]