81008487

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41479}}^1$

素因数の和:41523

約数の個数: 24

約数和(自身を含む): 138045440

約数和(自身を除く): 57036953

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 41479, 124437, 290353, 373311, 871059, 1285849, 2613177, 3857547, 9000943, 11572641, 27002829, 81008487]

約数ペア:

[(1, 81008487), (3, 27002829), (7, 11572641), (9, 9000943), (21, 3857547), (31, 2613177), (63, 1285849), (93, 871059), (217, 373311), (279, 290353), (651, 124437), (1953, 41479)]