20384793

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{337}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 35433216

約数和(自身を除く): 15048423

約数列:

[1, 3, 9, 11, 13, 33, 39, 47, 99, 117, 141, 143, 337, 423, 429, 517, 611, 1011, 1287, 1551, 1833, 3033, 3707, 4381, 4653, 5499, 6721, 11121, 13143, 15839, 20163, 33363, 39429, 47517, 48191, 60489, 142551, 144573, 174229, 205907, 433719, 522687, 617721, 1568061, 1853163, 2264977, 6794931, 20384793]

約数ペア:

[(1, 20384793), (3, 6794931), (9, 2264977), (11, 1853163), (13, 1568061), (33, 617721), (39, 522687), (47, 433719), (99, 205907), (117, 174229), (141, 144573), (143, 142551), (337, 60489), (423, 48191), (429, 47517), (517, 39429), (611, 33363), (1011, 20163), (1287, 15839), (1551, 13143), (1833, 11121), (3033, 6721), (3707, 5499), (4381, 4653)]