2540139

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:179

約数の個数: 32

約数和(自身を含む): 4139520

約数和(自身を除く): 1599381

約数列:

[1, 3, 7, 21, 29, 43, 87, 97, 129, 203, 291, 301, 609, 679, 903, 1247, 2037, 2813, 3741, 4171, 8439, 8729, 12513, 19691, 26187, 29197, 59073, 87591, 120959, 362877, 846713, 2540139]

約数ペア:

[(1, 2540139), (3, 846713), (7, 362877), (21, 120959), (29, 87591), (43, 59073), (87, 29197), (97, 26187), (129, 19691), (203, 12513), (291, 8729), (301, 8439), (609, 4171), (679, 3741), (903, 2813), (1247, 2037)]