20858277

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1\times {\mathrm{983}}^1$

素因数の和:1640

約数の個数: 16

約数和(自身を含む): 30417408

約数和(自身を除く): 9559131

約数列:

[1, 3, 11, 33, 643, 983, 1929, 2949, 7073, 10813, 21219, 32439, 632069, 1896207, 6952759, 20858277]

約数ペア:

[(1, 20858277), (3, 6952759), (11, 1896207), (33, 632069), (643, 32439), (983, 21219), (1929, 10813), (2949, 7073)]