189968247

素因数分解:

$3^4\times 7^2\times {\mathrm{23}}^1\times {\mathrm{2081}}^1$

素因数の和:2130

約数の個数: 60

約数和(自身を含む): 344629296

約数和(自身を除く): 154661049

約数列:

[1, 3, 7, 9, 21, 23, 27, 49, 63, 69, 81, 147, 161, 189, 207, 441, 483, 567, 621, 1127, 1323, 1449, 1863, 2081, 3381, 3969, 4347, 6243, 10143, 13041, 14567, 18729, 30429, 43701, 47863, 56187, 91287, 101969, 131103, 143589, 168561, 305907, 335041, 393309, 430767, 917721, 1005123, 1179927, 1292301, 2345287, 2753163, 3015369, 3876903, 7035861, 8259489, 9046107, 21107583, 27138321, 63322749, 189968247]

約数ペア:

[(1, 189968247), (3, 63322749), (7, 27138321), (9, 21107583), (21, 9046107), (23, 8259489), (27, 7035861), (49, 3876903), (63, 3015369), (69, 2753163), (81, 2345287), (147, 1292301), (161, 1179927), (189, 1005123), (207, 917721), (441, 430767), (483, 393309), (567, 335041), (621, 305907), (1127, 168561), (1323, 143589), (1449, 131103), (1863, 101969), (2081, 91287), (3381, 56187), (3969, 47863), (4347, 43701), (6243, 30429), (10143, 18729), (13041, 14567)]