18178556

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{23}}^2\times {\mathrm{71}}^1$

素因数の和:143

約数の個数: 54

約数和(自身を含む): 37068696

約数和(自身を除く): 18890140

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 71, 92, 121, 142, 242, 253, 284, 484, 506, 529, 781, 1012, 1058, 1562, 1633, 2116, 2783, 3124, 3266, 5566, 5819, 6532, 8591, 11132, 11638, 17182, 17963, 23276, 34364, 35926, 37559, 64009, 71852, 75118, 128018, 150236, 197593, 256036, 395186, 413149, 790372, 826298, 1652596, 4544639, 9089278, 18178556]

約数ペア:

[(1, 18178556), (2, 9089278), (4, 4544639), (11, 1652596), (22, 826298), (23, 790372), (44, 413149), (46, 395186), (71, 256036), (92, 197593), (121, 150236), (142, 128018), (242, 75118), (253, 71852), (284, 64009), (484, 37559), (506, 35926), (529, 34364), (781, 23276), (1012, 17963), (1058, 17182), (1562, 11638), (1633, 11132), (2116, 8591), (2783, 6532), (3124, 5819), (3266, 5566)]