21606255

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43649}}^1$

素因数の和:43671

約数の個数: 24

約数和(自身を含む): 40856400

約数和(自身を除く): 19250145

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 43649, 130947, 218245, 392841, 480139, 654735, 1440417, 1964205, 2400695, 4321251, 7202085, 21606255]

約数ペア:

[(1, 21606255), (3, 7202085), (5, 4321251), (9, 2400695), (11, 1964205), (15, 1440417), (33, 654735), (45, 480139), (55, 392841), (99, 218245), (165, 130947), (495, 43649)]