18164979

素因数分解:

$3^5\times 7^1\times {\mathrm{59}}^1\times {\mathrm{181}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 31799040

約数和(自身を除く): 13634061

約数列:

[1, 3, 7, 9, 21, 27, 59, 63, 81, 177, 181, 189, 243, 413, 531, 543, 567, 1239, 1267, 1593, 1629, 1701, 3717, 3801, 4779, 4887, 10679, 11151, 11403, 14337, 14661, 32037, 33453, 34209, 43983, 74753, 96111, 100359, 102627, 224259, 288333, 307881, 672777, 864999, 2018331, 2594997, 6054993, 18164979]

約数ペア:

[(1, 18164979), (3, 6054993), (7, 2594997), (9, 2018331), (21, 864999), (27, 672777), (59, 307881), (63, 288333), (81, 224259), (177, 102627), (181, 100359), (189, 96111), (243, 74753), (413, 43983), (531, 34209), (543, 33453), (567, 32037), (1239, 14661), (1267, 14337), (1593, 11403), (1629, 11151), (1701, 10679), (3717, 4887), (3801, 4779)]