990927

素因数分解:

$3^3\times 7^3\times {\mathrm{107}}^1$

素因数の和:137

約数の個数: 32

約数和(自身を含む): 1728000

約数和(自身を除く): 737073

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 107, 147, 189, 321, 343, 441, 749, 963, 1029, 1323, 2247, 2889, 3087, 5243, 6741, 9261, 15729, 20223, 36701, 47187, 110103, 141561, 330309, 990927]

約数ペア:

[(1, 990927), (3, 330309), (7, 141561), (9, 110103), (21, 47187), (27, 36701), (49, 20223), (63, 15729), (107, 9261), (147, 6741), (189, 5243), (321, 3087), (343, 2889), (441, 2247), (749, 1323), (963, 1029)]