15240393

素因数分解:

$3^4\times 7^1\times {\mathrm{26879}}^1$

素因数の和:26898

約数の個数: 20

約数和(自身を含む): 26019840

約数和(自身を除く): 10779447

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 26879, 80637, 188153, 241911, 564459, 725733, 1693377, 2177199, 5080131, 15240393]

約数ペア:

[(1, 15240393), (3, 5080131), (7, 2177199), (9, 1693377), (21, 725733), (27, 564459), (63, 241911), (81, 188153), (189, 80637), (567, 26879)]