19013918

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{397}}^1$

素因数の和:728

約数の個数: 32

約数和(自身を含む): 35762688

約数和(自身を除く): 16748770

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 311, 397, 622, 794, 2177, 2779, 3421, 4354, 4367, 5558, 6842, 8734, 23947, 30569, 47894, 61138, 123467, 246934, 864269, 1358137, 1728538, 2716274, 9506959, 19013918]

約数ペア:

[(1, 19013918), (2, 9506959), (7, 2716274), (11, 1728538), (14, 1358137), (22, 864269), (77, 246934), (154, 123467), (311, 61138), (397, 47894), (622, 30569), (794, 23947), (2177, 8734), (2779, 6842), (3421, 5558), (4354, 4367)]