20793901905

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{3143447}}^1$

素因数の和:3143475

約数の個数: 48

約数和(自身を含む): 43002368640

約数和(自身を除く): 22208466735

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 105, 135, 147, 189, 245, 315, 441, 735, 945, 1323, 2205, 6615, 3143447, 9430341, 15717235, 22004129, 28291023, 47151705, 66012387, 84873069, 110020645, 141455115, 154028903, 198037161, 330061935, 424365345, 462086709, 594111483, 770144515, 990185805, 1386260127, 2310433545, 2970557415, 4158780381, 6931300635, 20793901905]

約数ペア:

[(1, 20793901905), (3, 6931300635), (5, 4158780381), (7, 2970557415), (9, 2310433545), (15, 1386260127), (21, 990185805), (27, 770144515), (35, 594111483), (45, 462086709), (49, 424365345), (63, 330061935), (105, 198037161), (135, 154028903), (147, 141455115), (189, 110020645), (245, 84873069), (315, 66012387), (441, 47151705), (735, 28291023), (945, 22004129), (1323, 15717235), (2205, 9430341), (6615, 3143447)]