20105768

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{211}}^1\times {\mathrm{277}}^1$

素因数の和:537

約数の個数: 32

約数和(自身を含む): 38897760

約数和(自身を除く): 18791992

約数列:

[1, 2, 4, 8, 43, 86, 172, 211, 277, 344, 422, 554, 844, 1108, 1688, 2216, 9073, 11911, 18146, 23822, 36292, 47644, 58447, 72584, 95288, 116894, 233788, 467576, 2513221, 5026442, 10052884, 20105768]

約数ペア:

[(1, 20105768), (2, 10052884), (4, 5026442), (8, 2513221), (43, 467576), (86, 233788), (172, 116894), (211, 95288), (277, 72584), (344, 58447), (422, 47644), (554, 36292), (844, 23822), (1108, 18146), (1688, 11911), (2216, 9073)]