28403379

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{20627}}^1$

素因数の和:20656

約数の個数: 20

約数和(自身を含む): 44927784

約数和(自身を除く): 16524405

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 20627, 61881, 185643, 350659, 556929, 1051977, 1670787, 3155931, 9467793, 28403379]

約数ペア:

[(1, 28403379), (3, 9467793), (9, 3155931), (17, 1670787), (27, 1051977), (51, 556929), (81, 350659), (153, 185643), (459, 61881), (1377, 20627)]