21627844

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{5557}}^1$

素因数の和:5707

約数の個数: 24

約数和(自身を含む): 43574720

約数和(自身を除く): 21946876

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 5557, 11114, 22228, 38899, 77798, 155596, 772423, 1544846, 3089692, 5406961, 10813922, 21627844]

約数ペア:

[(1, 21627844), (2, 10813922), (4, 5406961), (7, 3089692), (14, 1544846), (28, 772423), (139, 155596), (278, 77798), (556, 38899), (973, 22228), (1946, 11114), (3892, 5557)]