20982753

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:147

約数の個数: 64

約数和(自身を含む): 36495360

約数和(自身を除く): 15512607

約数列:

[1, 3, 9, 11, 27, 31, 33, 43, 53, 93, 99, 129, 159, 279, 297, 341, 387, 473, 477, 583, 837, 1023, 1161, 1333, 1419, 1431, 1643, 1749, 2279, 3069, 3999, 4257, 4929, 5247, 6837, 9207, 11997, 12771, 14663, 14787, 15741, 18073, 20511, 25069, 35991, 43989, 44361, 54219, 61533, 70649, 75207, 131967, 162657, 211947, 225621, 395901, 487971, 635841, 676863, 777139, 1907523, 2331417, 6994251, 20982753]

約数ペア:

[(1, 20982753), (3, 6994251), (9, 2331417), (11, 1907523), (27, 777139), (31, 676863), (33, 635841), (43, 487971), (53, 395901), (93, 225621), (99, 211947), (129, 162657), (159, 131967), (279, 75207), (297, 70649), (341, 61533), (387, 54219), (473, 44361), (477, 43989), (583, 35991), (837, 25069), (1023, 20511), (1161, 18073), (1333, 15741), (1419, 14787), (1431, 14663), (1643, 12771), (1749, 11997), (2279, 9207), (3069, 6837), (3999, 5247), (4257, 4929)]