20049309

素因数分解:

$3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2467}}^1$

素因数の和:2526

約数の個数: 32

約数和(自身を含む): 34749440

約数和(自身を除く): 14700131

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 129, 189, 301, 387, 903, 1161, 2467, 2709, 7401, 8127, 17269, 22203, 51807, 66609, 106081, 155421, 318243, 466263, 742567, 954729, 2227701, 2864187, 6683103, 20049309]

約数ペア:

[(1, 20049309), (3, 6683103), (7, 2864187), (9, 2227701), (21, 954729), (27, 742567), (43, 466263), (63, 318243), (129, 155421), (189, 106081), (301, 66609), (387, 51807), (903, 22203), (1161, 17269), (2467, 8127), (2709, 7401)]