21228660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{117937}}^1$

素因数の和:117952

約数の個数: 36

約数和(自身を含む): 64394148

約数和(自身を除く): 43165488

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 117937, 235874, 353811, 471748, 589685, 707622, 1061433, 1179370, 1415244, 1769055, 2122866, 2358740, 3538110, 4245732, 5307165, 7076220, 10614330, 21228660]

約数ペア:

[(1, 21228660), (2, 10614330), (3, 7076220), (4, 5307165), (5, 4245732), (6, 3538110), (9, 2358740), (10, 2122866), (12, 1769055), (15, 1415244), (18, 1179370), (20, 1061433), (30, 707622), (36, 589685), (45, 471748), (60, 353811), (90, 235874), (180, 117937)]