28637889

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{36857}}^1$

素因数の和:36904

約数の個数: 16

約数和(自身を含む): 44819328

約数和(自身を除く): 16181439

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 36857, 110571, 257999, 773997, 1363709, 4091127, 9545963, 28637889]

約数ペア:

[(1, 28637889), (3, 9545963), (7, 4091127), (21, 1363709), (37, 773997), (111, 257999), (259, 110571), (777, 36857)]