21079744

素因数分解:

$2^6\times 7^1\times {\mathrm{211}}^1\times {\mathrm{223}}^1$

素因数の和:453

約数の個数: 56

約数和(自身を含む): 48247808

約数和(自身を除く): 27168064

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 211, 223, 224, 422, 446, 448, 844, 892, 1477, 1561, 1688, 1784, 2954, 3122, 3376, 3568, 5908, 6244, 6752, 7136, 11816, 12488, 13504, 14272, 23632, 24976, 47053, 47264, 49952, 94106, 94528, 99904, 188212, 329371, 376424, 658742, 752848, 1317484, 1505696, 2634968, 3011392, 5269936, 10539872, 21079744]

約数ペア:

[(1, 21079744), (2, 10539872), (4, 5269936), (7, 3011392), (8, 2634968), (14, 1505696), (16, 1317484), (28, 752848), (32, 658742), (56, 376424), (64, 329371), (112, 188212), (211, 99904), (223, 94528), (224, 94106), (422, 49952), (446, 47264), (448, 47053), (844, 24976), (892, 23632), (1477, 14272), (1561, 13504), (1688, 12488), (1784, 11816), (2954, 7136), (3122, 6752), (3376, 6244), (3568, 5908)]