18418791

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{1543}}^1$

素因数の和:1742

約数の個数: 16

約数和(自身を含む): 25790976

約数和(自身を除く): 7372185

約数列:

[1, 3, 23, 69, 173, 519, 1543, 3979, 4629, 11937, 35489, 106467, 266939, 800817, 6139597, 18418791]

約数ペア:

[(1, 18418791), (3, 6139597), (23, 800817), (69, 266939), (173, 106467), (519, 35489), (1543, 11937), (3979, 4629)]