21086703

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{70999}}^1$

素因数の和:71019

約数の個数: 16

約数和(自身を含む): 34080000

約数和(自身を除く): 12993297

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 70999, 212997, 638991, 780989, 1916973, 2342967, 7028901, 21086703]

約数ペア:

[(1, 21086703), (3, 7028901), (9, 2342967), (11, 1916973), (27, 780989), (33, 638991), (99, 212997), (297, 70999)]