21547551

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{857}}^1$

素因数の和:923

約数の個数: 24

約数和(自身を含む): 31608720

約数和(自身を除く): 10061169

約数列:

[1, 3, 17, 29, 51, 87, 289, 493, 857, 867, 1479, 2571, 8381, 14569, 24853, 25143, 43707, 74559, 247673, 422501, 743019, 1267503, 7182517, 21547551]

約数ペア:

[(1, 21547551), (3, 7182517), (17, 1267503), (29, 743019), (51, 422501), (87, 247673), (289, 74559), (493, 43707), (857, 25143), (867, 24853), (1479, 14569), (2571, 8381)]