20627487

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:324

約数の個数: 32

約数和(自身を含む): 31750400

約数和(自身を除く): 11122913

約数列:

[1, 3, 9, 27, 43, 109, 129, 163, 327, 387, 489, 981, 1161, 1467, 2943, 4401, 4687, 7009, 14061, 17767, 21027, 42183, 53301, 63081, 126549, 159903, 189243, 479709, 763981, 2291943, 6875829, 20627487]

約数ペア:

[(1, 20627487), (3, 6875829), (9, 2291943), (27, 763981), (43, 479709), (109, 189243), (129, 159903), (163, 126549), (327, 63081), (387, 53301), (489, 42183), (981, 21027), (1161, 17767), (1467, 14061), (2943, 7009), (4401, 4687)]