28223781

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{1597}}^1$

素因数の和:1780

約数の個数: 16

約数和(自身を含む): 38812224

約数和(自身を除く): 10588443

約数列:

[1, 3, 43, 129, 137, 411, 1597, 4791, 5891, 17673, 68671, 206013, 218789, 656367, 9407927, 28223781]

約数ペア:

[(1, 28223781), (3, 9407927), (43, 656367), (129, 218789), (137, 206013), (411, 68671), (1597, 17673), (4791, 5891)]