21906495

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37447}}^1$

素因数の和:37471

約数の個数: 24

約数和(自身を含む): 40893216

約数和(自身を除く): 18986721

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 37447, 112341, 187235, 337023, 486811, 561705, 1460433, 1685115, 2434055, 4381299, 7302165, 21906495]

約数ペア:

[(1, 21906495), (3, 7302165), (5, 4381299), (9, 2434055), (13, 1685115), (15, 1460433), (39, 561705), (45, 486811), (65, 337023), (117, 187235), (195, 112341), (585, 37447)]