20761664

素因数分解:

$2^6\times 7^1\times {\mathrm{11}}^2\times {\mathrm{383}}^1$

素因数の和:424

約数の個数: 84

約数和(自身を含む): 51889152

約数和(自身を除く): 31127488

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 64, 77, 88, 112, 121, 154, 176, 224, 242, 308, 352, 383, 448, 484, 616, 704, 766, 847, 968, 1232, 1532, 1694, 1936, 2464, 2681, 3064, 3388, 3872, 4213, 4928, 5362, 6128, 6776, 7744, 8426, 10724, 12256, 13552, 16852, 21448, 24512, 27104, 29491, 33704, 42896, 46343, 54208, 58982, 67408, 85792, 92686, 117964, 134816, 171584, 185372, 235928, 269632, 324401, 370744, 471856, 648802, 741488, 943712, 1297604, 1482976, 1887424, 2595208, 2965952, 5190416, 10380832, 20761664]

約数ペア:

[(1, 20761664), (2, 10380832), (4, 5190416), (7, 2965952), (8, 2595208), (11, 1887424), (14, 1482976), (16, 1297604), (22, 943712), (28, 741488), (32, 648802), (44, 471856), (56, 370744), (64, 324401), (77, 269632), (88, 235928), (112, 185372), (121, 171584), (154, 134816), (176, 117964), (224, 92686), (242, 85792), (308, 67408), (352, 58982), (383, 54208), (448, 46343), (484, 42896), (616, 33704), (704, 29491), (766, 27104), (847, 24512), (968, 21448), (1232, 16852), (1532, 13552), (1694, 12256), (1936, 10724), (2464, 8426), (2681, 7744), (3064, 6776), (3388, 6128), (3872, 5362), (4213, 4928)]