18887337

素因数分解:

$3^4\times 7^1\times {\mathrm{33311}}^1$

素因数の和:33330

約数の個数: 20

約数和(自身を含む): 32246016

約数和(自身を除く): 13358679

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 33311, 99933, 233177, 299799, 699531, 899397, 2098593, 2698191, 6295779, 18887337]

約数ペア:

[(1, 18887337), (3, 6295779), (7, 2698191), (9, 2098593), (21, 899397), (27, 699531), (63, 299799), (81, 233177), (189, 99933), (567, 33311)]