18870561

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{4253}}^1$

素因数の和:4305

約数の個数: 24

約数和(自身を含む): 29863080

約数和(自身を除く): 10992519

約数列:

[1, 3, 9, 17, 29, 51, 87, 153, 261, 493, 1479, 4253, 4437, 12759, 38277, 72301, 123337, 216903, 370011, 650709, 1110033, 2096729, 6290187, 18870561]

約数ペア:

[(1, 18870561), (3, 6290187), (9, 2096729), (17, 1110033), (29, 650709), (51, 370011), (87, 216903), (153, 123337), (261, 72301), (493, 38277), (1479, 12759), (4253, 4437)]