19481811

素因数分解:

$3^1\times {\mathrm{107}}^1\times {\mathrm{137}}^1\times {\mathrm{443}}^1$

素因数の和:690

約数の個数: 16

約数和(自身を含む): 26469504

約数和(自身を除く): 6987693

約数列:

[1, 3, 107, 137, 321, 411, 443, 1329, 14659, 43977, 47401, 60691, 142203, 182073, 6493937, 19481811]

約数ペア:

[(1, 19481811), (3, 6493937), (107, 182073), (137, 142203), (321, 60691), (411, 47401), (443, 43977), (1329, 14659)]