21274736

素因数分解:

$2^4\times 7^1\times {\mathrm{41}}^2\times {\mathrm{113}}^1$

素因数の和:210

約数の個数: 60

約数和(自身を含む): 48712656

約数和(自身を除く): 27437920

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 56, 82, 112, 113, 164, 226, 287, 328, 452, 574, 656, 791, 904, 1148, 1582, 1681, 1808, 2296, 3164, 3362, 4592, 4633, 6328, 6724, 9266, 11767, 12656, 13448, 18532, 23534, 26896, 32431, 37064, 47068, 64862, 74128, 94136, 129724, 188272, 189953, 259448, 379906, 518896, 759812, 1329671, 1519624, 2659342, 3039248, 5318684, 10637368, 21274736]

約数ペア:

[(1, 21274736), (2, 10637368), (4, 5318684), (7, 3039248), (8, 2659342), (14, 1519624), (16, 1329671), (28, 759812), (41, 518896), (56, 379906), (82, 259448), (112, 189953), (113, 188272), (164, 129724), (226, 94136), (287, 74128), (328, 64862), (452, 47068), (574, 37064), (656, 32431), (791, 26896), (904, 23534), (1148, 18532), (1582, 13448), (1681, 12656), (1808, 11767), (2296, 9266), (3164, 6724), (3362, 6328), (4592, 4633)]