18904179

素因数分解:

$3^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{3931}}^1$

素因数の和:4170

約数の個数: 16

約数和(自身を含む): 28939520

約数和(自身を除く): 10035341

約数列:

[1, 3, 7, 21, 229, 687, 1603, 3931, 4809, 11793, 27517, 82551, 900199, 2700597, 6301393, 18904179]

約数ペア:

[(1, 18904179), (3, 6301393), (7, 2700597), (21, 900199), (229, 82551), (687, 27517), (1603, 11793), (3931, 4809)]