21809451

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{4001}}^1$

素因数の和:4106

約数の個数: 16

約数和(自身を含む): 30735360

約数和(自身を除く): 8925909

約数列:

[1, 3, 23, 69, 79, 237, 1817, 4001, 5451, 12003, 92023, 276069, 316079, 948237, 7269817, 21809451]

約数ペア:

[(1, 21809451), (3, 7269817), (23, 948237), (69, 316079), (79, 276069), (237, 92023), (1817, 12003), (4001, 5451)]