18451881

素因数分解:

$3^4\times 7^2\times {\mathrm{4649}}^1$

素因数の和:4675

約数の個数: 30

約数和(自身を含む): 32071050

約数和(自身を除く): 13619169

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 4649, 13947, 32543, 41841, 97629, 125523, 227801, 292887, 376569, 683403, 878661, 2050209, 2635983, 6150627, 18451881]

約数ペア:

[(1, 18451881), (3, 6150627), (7, 2635983), (9, 2050209), (21, 878661), (27, 683403), (49, 376569), (63, 292887), (81, 227801), (147, 125523), (189, 97629), (441, 41841), (567, 32543), (1323, 13947), (3969, 4649)]