20809506

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{80657}}^1$

素因数の和:80705

約数の個数: 16

約数和(自身を含む): 42587424

約数和(自身を除く): 21777918

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 80657, 161314, 241971, 483942, 3468251, 6936502, 10404753, 20809506]

約数ペア:

[(1, 20809506), (2, 10404753), (3, 6936502), (6, 3468251), (43, 483942), (86, 241971), (129, 161314), (258, 80657)]