21094242

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{293}}^1$

素因数の和:395

約数の個数: 48

約数和(自身を含む): 46484928

約数和(自身を除く): 25390686

約数列:

[1, 2, 3, 6, 13, 26, 39, 71, 78, 142, 169, 213, 293, 338, 426, 507, 586, 879, 923, 1014, 1758, 1846, 2769, 3809, 5538, 7618, 11427, 11999, 20803, 22854, 23998, 35997, 41606, 49517, 62409, 71994, 99034, 124818, 148551, 270439, 297102, 540878, 811317, 1622634, 3515707, 7031414, 10547121, 21094242]

約数ペア:

[(1, 21094242), (2, 10547121), (3, 7031414), (6, 3515707), (13, 1622634), (26, 811317), (39, 540878), (71, 297102), (78, 270439), (142, 148551), (169, 124818), (213, 99034), (293, 71994), (338, 62409), (426, 49517), (507, 41606), (586, 35997), (879, 23998), (923, 22854), (1014, 20803), (1758, 11999), (1846, 11427), (2769, 7618), (3809, 5538)]