20656378509

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{853}}^1\times {\mathrm{1759}}^1$

素因数の和:2981

約数の個数: 32

約数和(自身を含む): 29796264960

約数和(自身を除く): 9139886451

約数列:

[1, 3, 13, 39, 353, 853, 1059, 1759, 2559, 4589, 5277, 11089, 13767, 22867, 33267, 68601, 301109, 620927, 903327, 1500427, 1862781, 3914417, 4501281, 8072051, 11743251, 19505551, 24216153, 58516653, 529650731, 1588952193, 6885459503, 20656378509]

約数ペア:

[(1, 20656378509), (3, 6885459503), (13, 1588952193), (39, 529650731), (353, 58516653), (853, 24216153), (1059, 19505551), (1759, 11743251), (2559, 8072051), (4589, 4501281), (5277, 3914417), (11089, 1862781), (13767, 1500427), (22867, 903327), (33267, 620927), (68601, 301109)]