19383993

素因数分解:

$3^2\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{199}}^1$

素因数の和:421

約数の個数: 24

約数和(自身を含む): 28704000

約数和(自身を除く): 9320007

約数列:

[1, 3, 9, 79, 137, 199, 237, 411, 597, 711, 1233, 1791, 10823, 15721, 27263, 32469, 47163, 81789, 97407, 141489, 245367, 2153777, 6461331, 19383993]

約数ペア:

[(1, 19383993), (3, 6461331), (9, 2153777), (79, 245367), (137, 141489), (199, 97407), (237, 81789), (411, 47163), (597, 32469), (711, 27263), (1233, 15721), (1791, 10823)]