20641516

素因数分解:

$2^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{5381}}^1$

素因数の和:5529

約数の個数: 24

約数和(自身を含む): 41592096

約数和(自身を除く): 20950580

約数列:

[1, 2, 4, 7, 14, 28, 137, 274, 548, 959, 1918, 3836, 5381, 10762, 21524, 37667, 75334, 150668, 737197, 1474394, 2948788, 5160379, 10320758, 20641516]

約数ペア:

[(1, 20641516), (2, 10320758), (4, 5160379), (7, 2948788), (14, 1474394), (28, 737197), (137, 150668), (274, 75334), (548, 37667), (959, 21524), (1918, 10762), (3836, 5381)]