81887337

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1823}}^1$

素因数の和:1890

約数の個数: 48

約数和(自身を含む): 145686528

約数和(自身を除く): 63799191

約数列:

[1, 3, 7, 9, 21, 23, 31, 63, 69, 93, 161, 207, 217, 279, 483, 651, 713, 1449, 1823, 1953, 2139, 4991, 5469, 6417, 12761, 14973, 16407, 38283, 41929, 44919, 56513, 114849, 125787, 169539, 293503, 377361, 395591, 508617, 880509, 1186773, 1299799, 2641527, 3560319, 3899397, 9098593, 11698191, 27295779, 81887337]

約数ペア:

[(1, 81887337), (3, 27295779), (7, 11698191), (9, 9098593), (21, 3899397), (23, 3560319), (31, 2641527), (63, 1299799), (69, 1186773), (93, 880509), (161, 508617), (207, 395591), (217, 377361), (279, 293503), (483, 169539), (651, 125787), (713, 114849), (1449, 56513), (1823, 44919), (1953, 41929), (2139, 38283), (4991, 16407), (5469, 14973), (6417, 12761)]