21243904

素因数分解:

$2^{11}\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:97

約数の個数: 96

約数和(自身を含む): 49533120

約数和(自身を除く): 28289216

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 32, 41, 44, 46, 64, 82, 88, 92, 128, 164, 176, 184, 253, 256, 328, 352, 368, 451, 506, 512, 656, 704, 736, 902, 943, 1012, 1024, 1312, 1408, 1472, 1804, 1886, 2024, 2048, 2624, 2816, 2944, 3608, 3772, 4048, 5248, 5632, 5888, 7216, 7544, 8096, 10373, 10496, 11264, 11776, 14432, 15088, 16192, 20746, 20992, 22528, 23552, 28864, 30176, 32384, 41492, 41984, 47104, 57728, 60352, 64768, 82984, 83968, 115456, 120704, 129536, 165968, 230912, 241408, 259072, 331936, 461824, 482816, 518144, 663872, 923648, 965632, 1327744, 1931264, 2655488, 5310976, 10621952, 21243904]

約数ペア:

[(1, 21243904), (2, 10621952), (4, 5310976), (8, 2655488), (11, 1931264), (16, 1327744), (22, 965632), (23, 923648), (32, 663872), (41, 518144), (44, 482816), (46, 461824), (64, 331936), (82, 259072), (88, 241408), (92, 230912), (128, 165968), (164, 129536), (176, 120704), (184, 115456), (253, 83968), (256, 82984), (328, 64768), (352, 60352), (368, 57728), (451, 47104), (506, 41984), (512, 41492), (656, 32384), (704, 30176), (736, 28864), (902, 23552), (943, 22528), (1012, 20992), (1024, 20746), (1312, 16192), (1408, 15088), (1472, 14432), (1804, 11776), (1886, 11264), (2024, 10496), (2048, 10373), (2624, 8096), (2816, 7544), (2944, 7216), (3608, 5888), (3772, 5632), (4048, 5248)]