19017921

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{1447}}^1$

素因数の和:1800

約数の個数: 16

約数和(自身を含む): 27407744

約数和(自身を除く): 8389823

約数列:

[1, 3, 13, 39, 337, 1011, 1447, 4341, 4381, 13143, 18811, 56433, 487639, 1462917, 6339307, 19017921]

約数ペア:

[(1, 19017921), (3, 6339307), (13, 1462917), (39, 487639), (337, 56433), (1011, 18811), (1447, 13143), (4341, 4381)]