21683121

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{2521}}^1$

素因数の和:2632

約数の個数: 16

約数和(自身を含む): 30021888

約数和(自身を除く): 8338767

約数列:

[1, 3, 47, 61, 141, 183, 2521, 2867, 7563, 8601, 118487, 153781, 355461, 461343, 7227707, 21683121]

約数ペア:

[(1, 21683121), (3, 7227707), (47, 461343), (61, 355461), (141, 153781), (183, 118487), (2521, 8601), (2867, 7563)]