28206387

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{31657}}^1$

素因数の和:31680

約数の個数: 20

約数和(自身を含む): 45967416

約数和(自身を除く): 17761029

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 31657, 94971, 284913, 348227, 854739, 1044681, 2564217, 3134043, 9402129, 28206387]

約数ペア:

[(1, 28206387), (3, 9402129), (9, 3134043), (11, 2564217), (27, 1044681), (33, 854739), (81, 348227), (99, 284913), (297, 94971), (891, 31657)]