18657297

素因数分解:

$3^7\times {\mathrm{19}}^1\times {\mathrm{449}}^1$

素因数の和:489

約数の個数: 32

約数和(自身を含む): 29520000

約数和(自身を除く): 10862703

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 243, 449, 513, 729, 1347, 1539, 2187, 4041, 4617, 8531, 12123, 13851, 25593, 36369, 41553, 76779, 109107, 230337, 327321, 691011, 981963, 2073033, 6219099, 18657297]

約数ペア:

[(1, 18657297), (3, 6219099), (9, 2073033), (19, 981963), (27, 691011), (57, 327321), (81, 230337), (171, 109107), (243, 76779), (449, 41553), (513, 36369), (729, 25593), (1347, 13851), (1539, 12123), (2187, 8531), (4041, 4617)]