166670217

素因数分解:

$3^4\times 7^4\times {\mathrm{857}}^1$

素因数の和:897

約数の個数: 50

約数和(自身を含む): 290794218

約数和(自身を除く): 124124001

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 343, 441, 567, 857, 1029, 1323, 2401, 2571, 3087, 3969, 5999, 7203, 7713, 9261, 17997, 21609, 23139, 27783, 41993, 53991, 64827, 69417, 125979, 161973, 194481, 293951, 377937, 485919, 881853, 1133811, 2057657, 2645559, 3401433, 6172971, 7936677, 18518913, 23810031, 55556739, 166670217]

約数ペア:

[(1, 166670217), (3, 55556739), (7, 23810031), (9, 18518913), (21, 7936677), (27, 6172971), (49, 3401433), (63, 2645559), (81, 2057657), (147, 1133811), (189, 881853), (343, 485919), (441, 377937), (567, 293951), (857, 194481), (1029, 161973), (1323, 125979), (2401, 69417), (2571, 64827), (3087, 53991), (3969, 41993), (5999, 27783), (7203, 23139), (7713, 21609), (9261, 17997)]