221027319

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{443}}^1\times {\mathrm{1087}}^1$

素因数の和:1556

約数の個数: 32

約数和(自身を含む): 347811840

約数和(自身を除く): 126784521

約数列:

[1, 3, 9, 17, 27, 51, 153, 443, 459, 1087, 1329, 3261, 3987, 7531, 9783, 11961, 18479, 22593, 29349, 55437, 67779, 166311, 203337, 481541, 498933, 1444623, 4333869, 8186197, 13001607, 24558591, 73675773, 221027319]

約数ペア:

[(1, 221027319), (3, 73675773), (9, 24558591), (17, 13001607), (27, 8186197), (51, 4333869), (153, 1444623), (443, 498933), (459, 481541), (1087, 203337), (1329, 166311), (3261, 67779), (3987, 55437), (7531, 29349), (9783, 22593), (11961, 18479)]