18880677

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{463}}^1$

素因数の和:689

約数の個数: 24

約数和(自身を含む): 28664064

約数和(自身を除く): 9783387

約数列:

[1, 3, 9, 23, 69, 197, 207, 463, 591, 1389, 1773, 4167, 4531, 10649, 13593, 31947, 40779, 91211, 95841, 273633, 820899, 2097853, 6293559, 18880677]

約数ペア:

[(1, 18880677), (3, 6293559), (9, 2097853), (23, 820899), (69, 273633), (197, 95841), (207, 91211), (463, 40779), (591, 31947), (1389, 13593), (1773, 10649), (4167, 4531)]