20498907

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{673}}^1$

素因数の和:771

約数の個数: 32

約数和(自身を含む): 32610816

約数和(自身を除く): 12111909

約数列:

[1, 3, 11, 13, 33, 39, 71, 143, 213, 429, 673, 781, 923, 2019, 2343, 2769, 7403, 8749, 10153, 22209, 26247, 30459, 47783, 96239, 143349, 288717, 525613, 621179, 1576839, 1863537, 6832969, 20498907]

約数ペア:

[(1, 20498907), (3, 6832969), (11, 1863537), (13, 1576839), (33, 621179), (39, 525613), (71, 288717), (143, 143349), (213, 96239), (429, 47783), (673, 30459), (781, 26247), (923, 22209), (2019, 10153), (2343, 8749), (2769, 7403)]