28683405

素因数分解:

$3^2\times 5^1\times {\mathrm{637409}}^1$

素因数の和:637420

約数の個数: 12

約数和(自身を含む): 49717980

約数和(自身を除く): 21034575

約数列:

[1, 3, 5, 9, 15, 45, 637409, 1912227, 3187045, 5736681, 9561135, 28683405]

約数ペア:

[(1, 28683405), (3, 9561135), (5, 5736681), (9, 3187045), (15, 1912227), (45, 637409)]