19811343

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1\times {\mathrm{331}}^1$

素因数の和:686

約数の個数: 16

約数和(自身を含む): 26963712

約数和(自身を除く): 7152369

約数列:

[1, 3, 71, 213, 281, 331, 843, 993, 19951, 23501, 59853, 70503, 93011, 279033, 6603781, 19811343]

約数ペア:

[(1, 19811343), (3, 6603781), (71, 279033), (213, 93011), (281, 70503), (331, 59853), (843, 23501), (993, 19951)]