19663189

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{7451}}^1$

素因数の和:7500

約数の個数: 16

約数和(自身を含む): 25038720

約数和(自身を除く): 5375531

約数列:

[1, 7, 13, 29, 91, 203, 377, 2639, 7451, 52157, 96863, 216079, 678041, 1512553, 2809027, 19663189]

約数ペア:

[(1, 19663189), (7, 2809027), (13, 1512553), (29, 678041), (91, 216079), (203, 96863), (377, 52157), (2639, 7451)]