990705771

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{47881}}^1$

素因数の和:47928

約数の個数: 36

約数和(自身を含む): 1655759560

約数和(自身を除く): 665053789

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 121, 171, 209, 363, 627, 1089, 1881, 2299, 6897, 20691, 47881, 143643, 430929, 526691, 909739, 1580073, 2729217, 4740219, 5793601, 8187651, 10007129, 17380803, 30021387, 52142409, 90064161, 110078419, 330235257, 990705771]

約数ペア:

[(1, 990705771), (3, 330235257), (9, 110078419), (11, 90064161), (19, 52142409), (33, 30021387), (57, 17380803), (99, 10007129), (121, 8187651), (171, 5793601), (209, 4740219), (363, 2729217), (627, 1580073), (1089, 909739), (1881, 526691), (2299, 430929), (6897, 143643), (20691, 47881)]