20489458

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{40493}}^1$

素因数の和:40529

約数の個数: 16

約数和(自身を含む): 34986816

約数和(自身を除く): 14497358

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 40493, 80986, 445423, 890846, 931339, 1862678, 10244729, 20489458]

約数ペア:

[(1, 20489458), (2, 10244729), (11, 1862678), (22, 931339), (23, 890846), (46, 445423), (253, 80986), (506, 40493)]