20139219

素因数分解:

$3^3\times {\mathrm{107}}^1\times {\mathrm{6971}}^1$

素因数の和:7087

約数の個数: 16

約数和(自身を含む): 30119040

約数和(自身を除く): 9979821

約数列:

[1, 3, 9, 27, 107, 321, 963, 2889, 6971, 20913, 62739, 188217, 745897, 2237691, 6713073, 20139219]

約数ペア:

[(1, 20139219), (3, 6713073), (9, 2237691), (27, 745897), (107, 188217), (321, 62739), (963, 20913), (2889, 6971)]