21696840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5479}}^1$

素因数の和:5507

約数の個数: 96

約数和(自身を含む): 76939200

約数和(自身を除く): 55242360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 132, 165, 180, 198, 220, 264, 330, 360, 396, 440, 495, 660, 792, 990, 1320, 1980, 3960, 5479, 10958, 16437, 21916, 27395, 32874, 43832, 49311, 54790, 60269, 65748, 82185, 98622, 109580, 120538, 131496, 164370, 180807, 197244, 219160, 241076, 246555, 301345, 328740, 361614, 394488, 482152, 493110, 542421, 602690, 657480, 723228, 904035, 986220, 1084842, 1205380, 1446456, 1808070, 1972440, 2169684, 2410760, 2712105, 3616140, 4339368, 5424210, 7232280, 10848420, 21696840]

約数ペア:

[(1, 21696840), (2, 10848420), (3, 7232280), (4, 5424210), (5, 4339368), (6, 3616140), (8, 2712105), (9, 2410760), (10, 2169684), (11, 1972440), (12, 1808070), (15, 1446456), (18, 1205380), (20, 1084842), (22, 986220), (24, 904035), (30, 723228), (33, 657480), (36, 602690), (40, 542421), (44, 493110), (45, 482152), (55, 394488), (60, 361614), (66, 328740), (72, 301345), (88, 246555), (90, 241076), (99, 219160), (110, 197244), (120, 180807), (132, 164370), (165, 131496), (180, 120538), (198, 109580), (220, 98622), (264, 82185), (330, 65748), (360, 60269), (396, 54790), (440, 49311), (495, 43832), (660, 32874), (792, 27395), (990, 21916), (1320, 16437), (1980, 10958), (3960, 5479)]