208441457

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 257402880

約数和(自身を除く): 48961423

約数列:

[1, 7, 19, 97, 107, 133, 151, 679, 749, 1057, 1843, 2033, 2869, 10379, 12901, 14231, 14647, 16157, 20083, 72653, 102529, 113099, 197201, 278293, 306983, 1380407, 1567229, 1948051, 2148881, 10970603, 29777351, 208441457]

約数ペア:

[(1, 208441457), (7, 29777351), (19, 10970603), (97, 2148881), (107, 1948051), (133, 1567229), (151, 1380407), (679, 306983), (749, 278293), (1057, 197201), (1843, 113099), (2033, 102529), (2869, 72653), (10379, 20083), (12901, 16157), (14231, 14647)]