21084924

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{2437}}^1$

素因数の和:2554

約数の個数: 48

約数和(自身を含む): 56795648

約数和(自身を除く): 35710724

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 103, 206, 309, 412, 618, 721, 1236, 1442, 2163, 2437, 2884, 4326, 4874, 7311, 8652, 9748, 14622, 17059, 29244, 34118, 51177, 68236, 102354, 204708, 251011, 502022, 753033, 1004044, 1506066, 1757077, 3012132, 3514154, 5271231, 7028308, 10542462, 21084924]

約数ペア:

[(1, 21084924), (2, 10542462), (3, 7028308), (4, 5271231), (6, 3514154), (7, 3012132), (12, 1757077), (14, 1506066), (21, 1004044), (28, 753033), (42, 502022), (84, 251011), (103, 204708), (206, 102354), (309, 68236), (412, 51177), (618, 34118), (721, 29244), (1236, 17059), (1442, 14622), (2163, 9748), (2437, 8652), (2884, 7311), (4326, 4874)]