21071296

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{181}}^1$

素因数の和:317

約数の個数: 56

約数和(自身を含む): 44933616

約数和(自身を除く): 23862320

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 107, 136, 181, 214, 272, 362, 428, 544, 724, 856, 1088, 1448, 1712, 1819, 2896, 3077, 3424, 3638, 5792, 6154, 6848, 7276, 11584, 12308, 14552, 19367, 24616, 29104, 38734, 49232, 58208, 77468, 98464, 116416, 154936, 196928, 309872, 329239, 619744, 658478, 1239488, 1316956, 2633912, 5267824, 10535648, 21071296]

約数ペア:

[(1, 21071296), (2, 10535648), (4, 5267824), (8, 2633912), (16, 1316956), (17, 1239488), (32, 658478), (34, 619744), (64, 329239), (68, 309872), (107, 196928), (136, 154936), (181, 116416), (214, 98464), (272, 77468), (362, 58208), (428, 49232), (544, 38734), (724, 29104), (856, 24616), (1088, 19367), (1448, 14552), (1712, 12308), (1819, 11584), (2896, 7276), (3077, 6848), (3424, 6154), (3638, 5792)]