21181881

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59333}}^1$

素因数の和:59360

約数の個数: 16

約数和(自身を含む): 34176384

約数和(自身を除く): 12994503

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 59333, 177999, 415331, 1008661, 1245993, 3025983, 7060627, 21181881]

約数ペア:

[(1, 21181881), (3, 7060627), (7, 3025983), (17, 1245993), (21, 1008661), (51, 415331), (119, 177999), (357, 59333)]