28768689

素因数分解:

$3^4\times {\mathrm{173}}^1\times {\mathrm{2053}}^1$

素因数の和:2238

約数の個数: 20

約数和(自身を含む): 43244916

約数和(自身を除く): 14476227

約数列:

[1, 3, 9, 27, 81, 173, 519, 1557, 2053, 4671, 6159, 14013, 18477, 55431, 166293, 355169, 1065507, 3196521, 9589563, 28768689]

約数ペア:

[(1, 28768689), (3, 9589563), (9, 3196521), (27, 1065507), (81, 355169), (173, 166293), (519, 55431), (1557, 18477), (2053, 14013), (4671, 6159)]