128774961

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^2\times {\mathrm{709}}^1$

素因数の和:787

約数の個数: 48

約数和(自身を含む): 225609600

約数和(自身を除く): 96834639

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 93, 189, 217, 279, 651, 709, 837, 961, 1953, 2127, 2883, 4963, 5859, 6381, 6727, 8649, 14889, 19143, 20181, 21979, 25947, 44667, 60543, 65937, 134001, 153853, 181629, 197811, 461559, 593433, 681349, 1384677, 2044047, 4154031, 4769443, 6132141, 14308329, 18396423, 42924987, 128774961]

約数ペア:

[(1, 128774961), (3, 42924987), (7, 18396423), (9, 14308329), (21, 6132141), (27, 4769443), (31, 4154031), (63, 2044047), (93, 1384677), (189, 681349), (217, 593433), (279, 461559), (651, 197811), (709, 181629), (837, 153853), (961, 134001), (1953, 65937), (2127, 60543), (2883, 44667), (4963, 25947), (5859, 21979), (6381, 20181), (6727, 19143), (8649, 14889)]