18340749

素因数分解:

$3^4\times 7^2\times {\mathrm{4621}}^1$

素因数の和:4647

約数の個数: 30

約数和(自身を含む): 31877934

約数和(自身を除く): 13537185

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 4621, 13863, 32347, 41589, 97041, 124767, 226429, 291123, 374301, 679287, 873369, 2037861, 2620107, 6113583, 18340749]

約数ペア:

[(1, 18340749), (3, 6113583), (7, 2620107), (9, 2037861), (21, 873369), (27, 679287), (49, 374301), (63, 291123), (81, 226429), (147, 124767), (189, 97041), (441, 41589), (567, 32347), (1323, 13863), (3969, 4621)]