21492945

素因数分解:

$3^4\times 5^1\times {\mathrm{53069}}^1$

素因数の和:53086

約数の個数: 20

約数和(自身を含む): 38528820

約数和(自身を除く): 17035875

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 53069, 159207, 265345, 477621, 796035, 1432863, 2388105, 4298589, 7164315, 21492945]

約数ペア:

[(1, 21492945), (3, 7164315), (5, 4298589), (9, 2388105), (15, 1432863), (27, 796035), (45, 477621), (81, 265345), (135, 159207), (405, 53069)]