18921000976

素因数分解:

$2^4\times {\mathrm{617}}^1\times {\mathrm{1916633}}^1$

素因数の和:1917258

約数の個数: 20

約数和(自身を含む): 36718874172

約数和(自身を除く): 17797873196

約数列:

[1, 2, 4, 8, 16, 617, 1234, 2468, 4936, 9872, 1916633, 3833266, 7666532, 15333064, 30666128, 1182562561, 2365125122, 4730250244, 9460500488, 18921000976]

約数ペア:

[(1, 18921000976), (2, 9460500488), (4, 4730250244), (8, 2365125122), (16, 1182562561), (617, 30666128), (1234, 15333064), (2468, 7666532), (4936, 3833266), (9872, 1916633)]