17747121

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{2341}}^1$

素因数の和:2389

約数の個数: 24

約数和(自身を含む): 28553664

約数和(自身を除く): 10806543

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 2341, 2527, 7023, 7581, 16387, 44479, 49161, 133437, 311353, 845101, 934059, 2535303, 5915707, 17747121]

約数ペア:

[(1, 17747121), (3, 5915707), (7, 2535303), (19, 934059), (21, 845101), (57, 311353), (133, 133437), (361, 49161), (399, 44479), (1083, 16387), (2341, 7581), (2527, 7023)]