21282795

素因数分解:

$3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4339}}^1$

素因数の和:4459

約数の個数: 24

約数和(自身を含む): 37237200

約数和(自身を除く): 15954405

約数列:

[1, 3, 5, 9, 15, 45, 109, 327, 545, 981, 1635, 4339, 4905, 13017, 21695, 39051, 65085, 195255, 472951, 1418853, 2364755, 4256559, 7094265, 21282795]

約数ペア:

[(1, 21282795), (3, 7094265), (5, 4256559), (9, 2364755), (15, 1418853), (45, 472951), (109, 195255), (327, 65085), (545, 39051), (981, 21695), (1635, 13017), (4339, 4905)]