208641915

素因数分解:

$3^2\times 5^1\times {\mathrm{811}}^1\times {\mathrm{5717}}^1$

素因数の和:6539

約数の個数: 24

約数和(自身を含む): 362155248

約数和(自身を除く): 153513333

約数列:

[1, 3, 5, 9, 15, 45, 811, 2433, 4055, 5717, 7299, 12165, 17151, 28585, 36495, 51453, 85755, 257265, 4636487, 13909461, 23182435, 41728383, 69547305, 208641915]

約数ペア:

[(1, 208641915), (3, 69547305), (5, 41728383), (9, 23182435), (15, 13909461), (45, 4636487), (811, 257265), (2433, 85755), (4055, 51453), (5717, 36495), (7299, 28585), (12165, 17151)]