18797834

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{173}}^1\times {\mathrm{449}}^1$

素因数の和:646

約数の個数: 24

約数和(自身を含む): 31241700

約数和(自身を除く): 12443866

約数列:

[1, 2, 11, 22, 121, 173, 242, 346, 449, 898, 1903, 3806, 4939, 9878, 20933, 41866, 54329, 77677, 108658, 155354, 854447, 1708894, 9398917, 18797834]

約数ペア:

[(1, 18797834), (2, 9398917), (11, 1708894), (22, 854447), (121, 155354), (173, 108658), (242, 77677), (346, 54329), (449, 41866), (898, 20933), (1903, 9878), (3806, 4939)]