20908608

素因数分解:

$2^6\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{331}}^1$

素因数の和:400

約数の個数: 112

約数和(自身を含む): 64763904

約数和(自身を除く): 43855296

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 47, 48, 56, 64, 84, 94, 96, 112, 141, 168, 188, 192, 224, 282, 329, 331, 336, 376, 448, 564, 658, 662, 672, 752, 987, 993, 1128, 1316, 1324, 1344, 1504, 1974, 1986, 2256, 2317, 2632, 2648, 3008, 3948, 3972, 4512, 4634, 5264, 5296, 6951, 7896, 7944, 9024, 9268, 10528, 10592, 13902, 15557, 15792, 15888, 18536, 21056, 21184, 27804, 31114, 31584, 31776, 37072, 46671, 55608, 62228, 63168, 63552, 74144, 93342, 108899, 111216, 124456, 148288, 186684, 217798, 222432, 248912, 326697, 373368, 435596, 444864, 497824, 653394, 746736, 871192, 995648, 1306788, 1493472, 1742384, 2613576, 2986944, 3484768, 5227152, 6969536, 10454304, 20908608]

約数ペア:

[(1, 20908608), (2, 10454304), (3, 6969536), (4, 5227152), (6, 3484768), (7, 2986944), (8, 2613576), (12, 1742384), (14, 1493472), (16, 1306788), (21, 995648), (24, 871192), (28, 746736), (32, 653394), (42, 497824), (47, 444864), (48, 435596), (56, 373368), (64, 326697), (84, 248912), (94, 222432), (96, 217798), (112, 186684), (141, 148288), (168, 124456), (188, 111216), (192, 108899), (224, 93342), (282, 74144), (329, 63552), (331, 63168), (336, 62228), (376, 55608), (448, 46671), (564, 37072), (658, 31776), (662, 31584), (672, 31114), (752, 27804), (987, 21184), (993, 21056), (1128, 18536), (1316, 15888), (1324, 15792), (1344, 15557), (1504, 13902), (1974, 10592), (1986, 10528), (2256, 9268), (2317, 9024), (2632, 7944), (2648, 7896), (3008, 6951), (3948, 5296), (3972, 5264), (4512, 4634)]