21805449

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{4451}}^1$

素因数の和:4548

約数の個数: 16

約数和(自身を含む): 30772224

約数和(自身を除く): 8966775

約数列:

[1, 3, 23, 69, 71, 213, 1633, 4451, 4899, 13353, 102373, 307119, 316021, 948063, 7268483, 21805449]

約数ペア:

[(1, 21805449), (3, 7268483), (23, 948063), (69, 316021), (71, 307119), (213, 102373), (1633, 13353), (4451, 4899)]