291265877

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1\times {\mathrm{211}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 359009280

約数和(自身を除く): 67743403

約数列:

[1, 7, 19, 97, 107, 133, 211, 679, 749, 1477, 1843, 2033, 4009, 10379, 12901, 14231, 20467, 22577, 28063, 72653, 143269, 158039, 197201, 388873, 428963, 1380407, 2189969, 2722111, 3002741, 15329783, 41609411, 291265877]

約数ペア:

[(1, 291265877), (7, 41609411), (19, 15329783), (97, 3002741), (107, 2722111), (133, 2189969), (211, 1380407), (679, 428963), (749, 388873), (1477, 197201), (1843, 158039), (2033, 143269), (4009, 72653), (10379, 28063), (12901, 22577), (14231, 20467)]