378137781

素因数分解:

$3^3\times 7^1\times {\mathrm{601}}^1\times {\mathrm{3329}}^1$

素因数の和:3946

約数の個数: 32

約数和(自身を含む): 641491200

約数和(自身を除く): 263353419

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 601, 1803, 3329, 4207, 5409, 9987, 12621, 16227, 23303, 29961, 37863, 69909, 89883, 113589, 209727, 629181, 2000729, 6002187, 14005103, 18006561, 42015309, 54019683, 126045927, 378137781]

約数ペア:

[(1, 378137781), (3, 126045927), (7, 54019683), (9, 42015309), (21, 18006561), (27, 14005103), (63, 6002187), (189, 2000729), (601, 629181), (1803, 209727), (3329, 113589), (4207, 89883), (5409, 69909), (9987, 37863), (12621, 29961), (16227, 23303)]