19782396

素因数分解:

$2^2\times 3^2\times {\mathrm{549511}}^1$

素因数の和:549521

約数の個数: 18

約数和(自身を含む): 50005592

約数和(自身を除く): 30223196

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 549511, 1099022, 1648533, 2198044, 3297066, 4945599, 6594132, 9891198, 19782396]

約数ペア:

[(1, 19782396), (2, 9891198), (3, 6594132), (4, 4945599), (6, 3297066), (9, 2198044), (12, 1648533), (18, 1099022), (36, 549511)]