18257805

素因数分解:

$3^6\times 5^1\times {\mathrm{5009}}^1$

素因数の和:5032

約数の個数: 28

約数和(自身を含む): 32855580

約数和(自身を除く): 14597775

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 5009, 15027, 25045, 45081, 75135, 135243, 225405, 405729, 676215, 1217187, 2028645, 3651561, 6085935, 18257805]

約数ペア:

[(1, 18257805), (3, 6085935), (5, 3651561), (9, 2028645), (15, 1217187), (27, 676215), (45, 405729), (81, 225405), (135, 135243), (243, 75135), (405, 45081), (729, 25045), (1215, 15027), (3645, 5009)]