19868485

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{3359}}^1$

素因数の和:3397

約数の個数: 24

約数和(自身を含む): 29514240

約数和(自身を除く): 9645755

約数列:

[1, 5, 7, 13, 35, 65, 91, 169, 455, 845, 1183, 3359, 5915, 16795, 23513, 43667, 117565, 218335, 305669, 567671, 1528345, 2838355, 3973697, 19868485]

約数ペア:

[(1, 19868485), (5, 3973697), (7, 2838355), (13, 1528345), (35, 567671), (65, 305669), (91, 218335), (169, 117565), (455, 43667), (845, 23513), (1183, 16795), (3359, 5915)]