20944413

素因数分解:

$3^5\times 7^2\times {\mathrm{1759}}^1$

素因数の和:1788

約数の個数: 36

約数和(自身を含む): 36516480

約数和(自身を除く): 15572067

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 441, 567, 1323, 1701, 1759, 3969, 5277, 11907, 12313, 15831, 36939, 47493, 86191, 110817, 142479, 258573, 332451, 427437, 775719, 997353, 2327157, 2992059, 6981471, 20944413]

約数ペア:

[(1, 20944413), (3, 6981471), (7, 2992059), (9, 2327157), (21, 997353), (27, 775719), (49, 427437), (63, 332451), (81, 258573), (147, 142479), (189, 110817), (243, 86191), (441, 47493), (567, 36939), (1323, 15831), (1701, 12313), (1759, 11907), (3969, 5277)]