20443167

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{1559}}^1$

素因数の和:1643

約数の個数: 24

約数和(自身を含む): 31150080

約数和(自身を除く): 10706913

約数列:

[1, 3, 9, 31, 47, 93, 141, 279, 423, 1457, 1559, 4371, 4677, 13113, 14031, 48329, 73273, 144987, 219819, 434961, 659457, 2271463, 6814389, 20443167]

約数ペア:

[(1, 20443167), (3, 6814389), (9, 2271463), (31, 659457), (47, 434961), (93, 219819), (141, 144987), (279, 73273), (423, 48329), (1457, 14031), (1559, 13113), (4371, 4677)]