18077721

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{1327}}^1$

素因数の和:1588

約数の個数: 16

約数和(自身を含む): 25497600

約数和(自身を除く): 7419879

約数列:

[1, 3, 19, 57, 239, 717, 1327, 3981, 4541, 13623, 25213, 75639, 317153, 951459, 6025907, 18077721]

約数ペア:

[(1, 18077721), (3, 6025907), (19, 951459), (57, 317153), (239, 75639), (717, 25213), (1327, 13623), (3981, 4541)]