25281377

素因数分解:

${\mathrm{11}}^2\times {\mathrm{43}}^2\times {\mathrm{113}}^1$

素因数の和:221

約数の個数: 18

約数和(自身を含む): 28701666

約数和(自身を除く): 3420289

約数列:

[1, 11, 43, 113, 121, 473, 1243, 1849, 4859, 5203, 13673, 20339, 53449, 208937, 223729, 587939, 2298307, 25281377]

約数ペア:

[(1, 25281377), (11, 2298307), (43, 587939), (113, 223729), (121, 208937), (473, 53449), (1243, 20339), (1849, 13673), (4859, 5203)]