20704628

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{15733}}^1$

素因数の和:15791

約数の個数: 24

約数和(自身を含む): 42292992

約数和(自身を除く): 21588364

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 15733, 31466, 62932, 110131, 220262, 440524, 739451, 1478902, 2957804, 5176157, 10352314, 20704628]

約数ペア:

[(1, 20704628), (2, 10352314), (4, 5176157), (7, 2957804), (14, 1478902), (28, 739451), (47, 440524), (94, 220262), (188, 110131), (329, 62932), (658, 31466), (1316, 15733)]