19943403

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{859}}^1$

素因数の和:1042

約数の個数: 16

約数和(自身を含む): 27244800

約数和(自身を除く): 7301397

約数列:

[1, 3, 71, 109, 213, 327, 859, 2577, 7739, 23217, 60989, 93631, 182967, 280893, 6647801, 19943403]

約数ペア:

[(1, 19943403), (3, 6647801), (71, 280893), (109, 182967), (213, 93631), (327, 60989), (859, 23217), (2577, 7739)]