20430179

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:227

約数の個数: 32

約数和(自身を含む): 26790912

約数和(自身を除く): 6360733

約数列:

[1, 7, 11, 37, 71, 77, 101, 259, 407, 497, 707, 781, 1111, 2627, 2849, 3737, 5467, 7171, 7777, 18389, 26159, 28897, 41107, 50197, 78881, 202279, 265327, 287749, 552167, 1857289, 2918597, 20430179]

約数ペア:

[(1, 20430179), (7, 2918597), (11, 1857289), (37, 552167), (71, 287749), (77, 265327), (101, 202279), (259, 78881), (407, 50197), (497, 41107), (707, 28897), (781, 26159), (1111, 18389), (2627, 7777), (2849, 7171), (3737, 5467)]