28121019

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{3739}}^1$

素因数の和:3874

約数の個数: 16

約数和(自身を含む): 39494400

約数和(自身を除く): 11373381

約数列:

[1, 3, 23, 69, 109, 327, 2507, 3739, 7521, 11217, 85997, 257991, 407551, 1222653, 9373673, 28121019]

約数ペア:

[(1, 28121019), (3, 9373673), (23, 1222653), (69, 407551), (109, 257991), (327, 85997), (2507, 11217), (3739, 7521)]