19561451

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{2087}}^1$

素因数の和:2210

約数の個数: 16

約数和(自身を含む): 24321024

約数和(自身を除く): 4759573

約数列:

[1, 7, 13, 91, 103, 721, 1339, 2087, 9373, 14609, 27131, 189917, 214961, 1504727, 2794493, 19561451]

約数ペア:

[(1, 19561451), (7, 2794493), (13, 1504727), (91, 214961), (103, 189917), (721, 27131), (1339, 14609), (2087, 9373)]