2638321

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{239}}^1$

素因数の和:348

約数の個数: 16

約数和(自身を含む): 3225600

約数和(自身を除く): 587279

約数列:

[1, 7, 19, 83, 133, 239, 581, 1577, 1673, 4541, 11039, 19837, 31787, 138859, 376903, 2638321]

約数ペア:

[(1, 2638321), (7, 376903), (19, 138859), (83, 31787), (133, 19837), (239, 11039), (581, 4541), (1577, 1673)]