21539343

素因数分解:

$3^1\times 7^1\times {\mathrm{619}}^1\times {\mathrm{1657}}^1$

素因数の和:2286

約数の個数: 16

約数和(自身を含む): 32894720

約数和(自身を除く): 11355377

約数列:

[1, 3, 7, 21, 619, 1657, 1857, 4333, 4971, 11599, 12999, 34797, 1025683, 3077049, 7179781, 21539343]

約数ペア:

[(1, 21539343), (3, 7179781), (7, 3077049), (21, 1025683), (619, 34797), (1657, 12999), (1857, 11599), (4333, 4971)]