20697525

素因数分解:

$3^5\times 5^2\times {\mathrm{3407}}^1$

素因数の和:3432

約数の個数: 36

約数和(自身を含む): 38455872

約数和(自身を除く): 17758347

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 405, 675, 1215, 2025, 3407, 6075, 10221, 17035, 30663, 51105, 85175, 91989, 153315, 255525, 275967, 459945, 766575, 827901, 1379835, 2299725, 4139505, 6899175, 20697525]

約数ペア:

[(1, 20697525), (3, 6899175), (5, 4139505), (9, 2299725), (15, 1379835), (25, 827901), (27, 766575), (45, 459945), (75, 275967), (81, 255525), (135, 153315), (225, 91989), (243, 85175), (405, 51105), (675, 30663), (1215, 17035), (2025, 10221), (3407, 6075)]