19949979

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{22093}}^1$

素因数の和:22146

約数の個数: 16

約数和(自身を含む): 31108352

約数和(自身を除く): 11158373

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 22093, 66279, 154651, 463953, 949999, 2849997, 6649993, 19949979]

約数ペア:

[(1, 19949979), (3, 6649993), (7, 2849997), (21, 949999), (43, 463953), (129, 154651), (301, 66279), (903, 22093)]