20006811

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:145

約数の個数: 64

約数和(自身を含む): 34836480

約数和(自身を除く): 14829669

約数列:

[1, 3, 9, 11, 27, 31, 33, 41, 53, 93, 99, 123, 159, 279, 297, 341, 369, 451, 477, 583, 837, 1023, 1107, 1271, 1353, 1431, 1643, 1749, 2173, 3069, 3813, 4059, 4929, 5247, 6519, 9207, 11439, 12177, 13981, 14787, 15741, 18073, 19557, 23903, 34317, 41943, 44361, 54219, 58671, 67363, 71709, 125829, 162657, 202089, 215127, 377487, 487971, 606267, 645381, 740993, 1818801, 2222979, 6668937, 20006811]

約数ペア:

[(1, 20006811), (3, 6668937), (9, 2222979), (11, 1818801), (27, 740993), (31, 645381), (33, 606267), (41, 487971), (53, 377487), (93, 215127), (99, 202089), (123, 162657), (159, 125829), (279, 71709), (297, 67363), (341, 58671), (369, 54219), (451, 44361), (477, 41943), (583, 34317), (837, 23903), (1023, 19557), (1107, 18073), (1271, 15741), (1353, 14787), (1431, 13981), (1643, 12177), (1749, 11439), (2173, 9207), (3069, 6519), (3813, 5247), (4059, 4929)]