19774885

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{3851}}^1$

素因数の和:3948

約数の個数: 16

約数和(自身を含む): 25885440

約数和(自身を除く): 6110555

約数列:

[1, 5, 13, 65, 79, 395, 1027, 3851, 5135, 19255, 50063, 250315, 304229, 1521145, 3954977, 19774885]

約数ペア:

[(1, 19774885), (5, 3954977), (13, 1521145), (65, 304229), (79, 250315), (395, 50063), (1027, 19255), (3851, 5135)]