28403964

素因数分解:

$2^2\times 3^2\times {\mathrm{788999}}^1$

素因数の和:789009

約数の個数: 18

約数和(自身を含む): 71799000

約数和(自身を除く): 43395036

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 788999, 1577998, 2366997, 3155996, 4733994, 7100991, 9467988, 14201982, 28403964]

約数ペア:

[(1, 28403964), (2, 14201982), (3, 9467988), (4, 7100991), (6, 4733994), (9, 3155996), (12, 2366997), (18, 1577998), (36, 788999)]