18677955

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{54139}}^1$

素因数の和:54170

約数の個数: 16

約数和(自身を含む): 31184640

約数和(自身を除く): 12506685

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 54139, 162417, 270695, 812085, 1245197, 3735591, 6225985, 18677955]

約数ペア:

[(1, 18677955), (3, 6225985), (5, 3735591), (15, 1245197), (23, 812085), (69, 270695), (115, 162417), (345, 54139)]