21388035

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{433}}^1$

素因数の和:567

約数の個数: 32

約数和(自身を含む): 35622720

約数和(自身を除く): 14234685

約数列:

[1, 3, 5, 15, 37, 89, 111, 185, 267, 433, 445, 555, 1299, 1335, 2165, 3293, 6495, 9879, 16021, 16465, 38537, 48063, 49395, 80105, 115611, 192685, 240315, 578055, 1425869, 4277607, 7129345, 21388035]

約数ペア:

[(1, 21388035), (3, 7129345), (5, 4277607), (15, 1425869), (37, 578055), (89, 240315), (111, 192685), (185, 115611), (267, 80105), (433, 49395), (445, 48063), (555, 38537), (1299, 16465), (1335, 16021), (2165, 9879), (3293, 6495)]