20908935

素因数分解:

$3^5\times 5^1\times {\mathrm{17209}}^1$

素因数の和:17229

約数の個数: 24

約数和(自身を含む): 37586640

約数和(自身を除く): 16677705

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 17209, 51627, 86045, 154881, 258135, 464643, 774405, 1393929, 2323215, 4181787, 6969645, 20908935]

約数ペア:

[(1, 20908935), (3, 6969645), (5, 4181787), (9, 2323215), (15, 1393929), (27, 774405), (45, 464643), (81, 258135), (135, 154881), (243, 86045), (405, 51627), (1215, 17209)]