18901036

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{563}}^1$

素因数の和:694

約数の個数: 48

約数和(自身を含む): 41690880

約数和(自身を除く): 22789844

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 109, 154, 218, 308, 436, 563, 763, 1126, 1199, 1526, 2252, 2398, 3052, 3941, 4796, 6193, 7882, 8393, 12386, 15764, 16786, 24772, 33572, 43351, 61367, 86702, 122734, 173404, 245468, 429569, 675037, 859138, 1350074, 1718276, 2700148, 4725259, 9450518, 18901036]

約数ペア:

[(1, 18901036), (2, 9450518), (4, 4725259), (7, 2700148), (11, 1718276), (14, 1350074), (22, 859138), (28, 675037), (44, 429569), (77, 245468), (109, 173404), (154, 122734), (218, 86702), (308, 61367), (436, 43351), (563, 33572), (763, 24772), (1126, 16786), (1199, 15764), (1526, 12386), (2252, 8393), (2398, 7882), (3052, 6193), (3941, 4796)]