19821896

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{311}}^1$

素因数の和:605

約数の個数: 32

約数和(自身を含む): 38638080

約数和(自身を除く): 18816184

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 257, 311, 514, 622, 1028, 1244, 2056, 2488, 7967, 9641, 15934, 19282, 31868, 38564, 63736, 77128, 79927, 159854, 319708, 639416, 2477737, 4955474, 9910948, 19821896]

約数ペア:

[(1, 19821896), (2, 9910948), (4, 4955474), (8, 2477737), (31, 639416), (62, 319708), (124, 159854), (248, 79927), (257, 77128), (311, 63736), (514, 38564), (622, 31868), (1028, 19282), (1244, 15934), (2056, 9641), (2488, 7967)]