21228084

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{15937}}^1$

素因数の和:15984

約数の個数: 36

約数和(自身を含む): 55113604

約数和(自身を除く): 33885520

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 111, 148, 222, 333, 444, 666, 1332, 15937, 31874, 47811, 63748, 95622, 143433, 191244, 286866, 573732, 589669, 1179338, 1769007, 2358676, 3538014, 5307021, 7076028, 10614042, 21228084]

約数ペア:

[(1, 21228084), (2, 10614042), (3, 7076028), (4, 5307021), (6, 3538014), (9, 2358676), (12, 1769007), (18, 1179338), (36, 589669), (37, 573732), (74, 286866), (111, 191244), (148, 143433), (222, 95622), (333, 63748), (444, 47811), (666, 31874), (1332, 15937)]