20481165

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12301}}^1$

素因数の和:12349

約数の個数: 24

約数和(自身を含む): 36463128

約数和(自身を除く): 15981963

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 12301, 36903, 61505, 110709, 184515, 455137, 553545, 1365411, 2275685, 4096233, 6827055, 20481165]

約数ペア:

[(1, 20481165), (3, 6827055), (5, 4096233), (9, 2275685), (15, 1365411), (37, 553545), (45, 455137), (111, 184515), (185, 110709), (333, 61505), (555, 36903), (1665, 12301)]