19988310

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{666277}}^1$

素因数の和:666287

約数の個数: 16

約数和(自身を含む): 47972016

約数和(自身を除く): 27983706

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 666277, 1332554, 1998831, 3331385, 3997662, 6662770, 9994155, 19988310]

約数ペア:

[(1, 19988310), (2, 9994155), (3, 6662770), (5, 3997662), (6, 3331385), (10, 1998831), (15, 1332554), (30, 666277)]