17945291

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:243

約数の個数: 32

約数和(自身を含む): 23708160

約数和(自身を除く): 5762869

約数列:

[1, 7, 13, 19, 91, 97, 107, 133, 247, 679, 749, 1261, 1391, 1729, 1843, 2033, 8827, 9737, 10379, 12901, 14231, 23959, 26429, 72653, 134927, 167713, 185003, 197201, 944489, 1380407, 2563613, 17945291]

約数ペア:

[(1, 17945291), (7, 2563613), (13, 1380407), (19, 944489), (91, 197201), (97, 185003), (107, 167713), (133, 134927), (247, 72653), (679, 26429), (749, 23959), (1261, 14231), (1391, 12901), (1729, 10379), (1843, 9737), (2033, 8827)]