28939989

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{17257}}^1$

素因数の和:17316

約数の個数: 16

約数和(自身を含む): 42523712

約数和(自身を除く): 13583723

約数列:

[1, 3, 13, 39, 43, 129, 559, 1677, 17257, 51771, 224341, 673023, 742051, 2226153, 9646663, 28939989]

約数ペア:

[(1, 28939989), (3, 9646663), (13, 2226153), (39, 742051), (43, 673023), (129, 224341), (559, 51771), (1677, 17257)]