20862927

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:277

約数の個数: 40

約数和(自身を含む): 33541200

約数和(自身を除く): 12678273

約数列:

[1, 3, 9, 17, 27, 51, 81, 109, 139, 153, 327, 417, 459, 981, 1251, 1377, 1853, 2363, 2943, 3753, 5559, 7089, 8829, 11259, 15151, 16677, 21267, 45453, 50031, 63801, 136359, 150093, 191403, 257567, 409077, 772701, 1227231, 2318103, 6954309, 20862927]

約数ペア:

[(1, 20862927), (3, 6954309), (9, 2318103), (17, 1227231), (27, 772701), (51, 409077), (81, 257567), (109, 191403), (139, 150093), (153, 136359), (327, 63801), (417, 50031), (459, 45453), (981, 21267), (1251, 16677), (1377, 15151), (1853, 11259), (2363, 8829), (2943, 7089), (3753, 5559)]