2155167

素因数分解:

$3^5\times 7^2\times {\mathrm{181}}^1$

素因数の和:210

約数の個数: 36

約数和(自身を含む): 3776136

約数和(自身を除く): 1620969

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 181, 189, 243, 441, 543, 567, 1267, 1323, 1629, 1701, 3801, 3969, 4887, 8869, 11403, 11907, 14661, 26607, 34209, 43983, 79821, 102627, 239463, 307881, 718389, 2155167]

約数ペア:

[(1, 2155167), (3, 718389), (7, 307881), (9, 239463), (21, 102627), (27, 79821), (49, 43983), (63, 34209), (81, 26607), (147, 14661), (181, 11907), (189, 11403), (243, 8869), (441, 4887), (543, 3969), (567, 3801), (1267, 1701), (1323, 1629)]