19955247

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{13829}}^1$

素因数の和:13882

約数の個数: 16

約数和(自身を含む): 29430240

約数和(自身を除く): 9474993

約数列:

[1, 3, 13, 37, 39, 111, 481, 1443, 13829, 41487, 179777, 511673, 539331, 1535019, 6651749, 19955247]

約数ペア:

[(1, 19955247), (3, 6651749), (13, 1535019), (37, 539331), (39, 511673), (111, 179777), (481, 41487), (1443, 13829)]