20820135

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{2389}}^1$

素因数の和:2487

約数の個数: 32

約数和(自身を含む): 38545920

約数和(自身を除く): 17725785

約数列:

[1, 3, 5, 7, 15, 21, 35, 83, 105, 249, 415, 581, 1245, 1743, 2389, 2905, 7167, 8715, 11945, 16723, 35835, 50169, 83615, 198287, 250845, 594861, 991435, 1388009, 2974305, 4164027, 6940045, 20820135]

約数ペア:

[(1, 20820135), (3, 6940045), (5, 4164027), (7, 2974305), (15, 1388009), (21, 991435), (35, 594861), (83, 250845), (105, 198287), (249, 83615), (415, 50169), (581, 35835), (1245, 16723), (1743, 11945), (2389, 8715), (2905, 7167)]