21919016

素因数分解:

$2^3\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1523}}^1$

素因数の和:1793

約数の個数: 32

約数和(自身を含む): 47183040

約数和(自身を除く): 25264024

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 257, 514, 1028, 1523, 1799, 2056, 3046, 3598, 6092, 7196, 10661, 12184, 14392, 21322, 42644, 85288, 391411, 782822, 1565644, 2739877, 3131288, 5479754, 10959508, 21919016]

約数ペア:

[(1, 21919016), (2, 10959508), (4, 5479754), (7, 3131288), (8, 2739877), (14, 1565644), (28, 782822), (56, 391411), (257, 85288), (514, 42644), (1028, 21322), (1523, 14392), (1799, 12184), (2056, 10661), (3046, 7196), (3598, 6092)]