21630125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{15731}}^1$

素因数の和:15757

約数の個数: 16

約数和(自身を含む): 29450304

約数和(自身を除く): 7820179

約数列:

[1, 5, 11, 25, 55, 125, 275, 1375, 15731, 78655, 173041, 393275, 865205, 1966375, 4326025, 21630125]

約数ペア:

[(1, 21630125), (5, 4326025), (11, 1966375), (25, 865205), (55, 393275), (125, 173041), (275, 78655), (1375, 15731)]