28969731

素因数分解:

$3^6\times 7^2\times {\mathrm{811}}^1$

素因数の和:843

約数の個数: 42

約数和(自身を含む): 50588412

約数和(自身を除く): 21618681

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 441, 567, 729, 811, 1323, 1701, 2433, 3969, 5103, 5677, 7299, 11907, 17031, 21897, 35721, 39739, 51093, 65691, 119217, 153279, 197073, 357651, 459837, 591219, 1072953, 1379511, 3218859, 4138533, 9656577, 28969731]

約数ペア:

[(1, 28969731), (3, 9656577), (7, 4138533), (9, 3218859), (21, 1379511), (27, 1072953), (49, 591219), (63, 459837), (81, 357651), (147, 197073), (189, 153279), (243, 119217), (441, 65691), (567, 51093), (729, 39739), (811, 35721), (1323, 21897), (1701, 17031), (2433, 11907), (3969, 7299), (5103, 5677)]