208998531

素因数分解:

$3^2\times 7^1\times {\mathrm{311}}^1\times {\mathrm{10667}}^1$

素因数の和:10991

約数の個数: 24

約数和(自身を含む): 346155264

約数和(自身を除く): 137156733

約数列:

[1, 3, 7, 9, 21, 63, 311, 933, 2177, 2799, 6531, 10667, 19593, 32001, 74669, 96003, 224007, 672021, 3317437, 9952311, 23222059, 29856933, 69666177, 208998531]

約数ペア:

[(1, 208998531), (3, 69666177), (7, 29856933), (9, 23222059), (21, 9952311), (63, 3317437), (311, 672021), (933, 224007), (2177, 96003), (2799, 74669), (6531, 32001), (10667, 19593)]