20819493

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{607}}^1$

素因数の和:753

約数の個数: 24

約数和(自身を含む): 31236608

約数和(自身を除く): 10417115

約数列:

[1, 3, 9, 37, 103, 111, 309, 333, 607, 927, 1821, 3811, 5463, 11433, 22459, 34299, 62521, 67377, 187563, 202131, 562689, 2313277, 6939831, 20819493]

約数ペア:

[(1, 20819493), (3, 6939831), (9, 2313277), (37, 562689), (103, 202131), (111, 187563), (309, 67377), (333, 62521), (607, 34299), (927, 22459), (1821, 11433), (3811, 5463)]