21816486

素因数分解:

$2^1\times 3^3\times {\mathrm{404009}}^1$

素因数の和:404020

約数の個数: 16

約数和(自身を含む): 48481200

約数和(自身を除く): 26664714

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 404009, 808018, 1212027, 2424054, 3636081, 7272162, 10908243, 21816486]

約数ペア:

[(1, 21816486), (2, 10908243), (3, 7272162), (6, 3636081), (9, 2424054), (18, 1212027), (27, 808018), (54, 404009)]