21310366

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1949}}^1$

素因数の和:2040

約数の個数: 32

約数和(自身を含む): 40435200

約数和(自身を除く): 19124834

約数列:

[1, 2, 7, 11, 14, 22, 71, 77, 142, 154, 497, 781, 994, 1562, 1949, 3898, 5467, 10934, 13643, 21439, 27286, 42878, 138379, 150073, 276758, 300146, 968653, 1522169, 1937306, 3044338, 10655183, 21310366]

約数ペア:

[(1, 21310366), (2, 10655183), (7, 3044338), (11, 1937306), (14, 1522169), (22, 968653), (71, 300146), (77, 276758), (142, 150073), (154, 138379), (497, 42878), (781, 27286), (994, 21439), (1562, 13643), (1949, 10934), (3898, 5467)]