21847707

素因数分解:

$3^2\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1451}}^1$

素因数の和:1703

約数の個数: 24

約数和(自身を含む): 36241920

約数和(自身を除く): 14394213

約数列:

[1, 3, 7, 9, 21, 63, 239, 717, 1451, 1673, 2151, 4353, 5019, 10157, 13059, 15057, 30471, 91413, 346789, 1040367, 2427523, 3121101, 7282569, 21847707]

約数ペア:

[(1, 21847707), (3, 7282569), (7, 3121101), (9, 2427523), (21, 1040367), (63, 346789), (239, 91413), (717, 30471), (1451, 15057), (1673, 13059), (2151, 10157), (4353, 5019)]