28199619

素因数分解:

$3^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{2473}}^1$

素因数の和:2667

約数の個数: 24

約数和(自身を含む): 46827872

約数和(自身を除く): 18628253

約数列:

[1, 3, 7, 9, 21, 63, 181, 543, 1267, 1629, 2473, 3801, 7419, 11403, 17311, 22257, 51933, 155799, 447613, 1342839, 3133291, 4028517, 9399873, 28199619]

約数ペア:

[(1, 28199619), (3, 9399873), (7, 4028517), (9, 3133291), (21, 1342839), (63, 447613), (181, 155799), (543, 51933), (1267, 22257), (1629, 17311), (2473, 11403), (3801, 7419)]