19389981

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{541}}^1\times {\mathrm{919}}^1$

素因数の和:1476

約数の個数: 16

約数和(自身を含む): 27923840

約数和(自身を除く): 8533859

約数列:

[1, 3, 13, 39, 541, 919, 1623, 2757, 7033, 11947, 21099, 35841, 497179, 1491537, 6463327, 19389981]

約数ペア:

[(1, 19389981), (3, 6463327), (13, 1491537), (39, 497179), (541, 35841), (919, 21099), (1623, 11947), (2757, 7033)]