19897168

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{26459}}^1$

素因数の和:26514

約数の個数: 20

約数和(自身を含む): 39372480

約数和(自身を除く): 19475312

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 26459, 52918, 105836, 211672, 423344, 1243573, 2487146, 4974292, 9948584, 19897168]

約数ペア:

[(1, 19897168), (2, 9948584), (4, 4974292), (8, 2487146), (16, 1243573), (47, 423344), (94, 211672), (188, 105836), (376, 52918), (752, 26459)]