21258032

素因数分解:

$2^4\times {\mathrm{383}}^1\times {\mathrm{3469}}^1$

素因数の和:3860

約数の個数: 20

約数和(自身を含む): 41306880

約数和(自身を除く): 20048848

約数列:

[1, 2, 4, 8, 16, 383, 766, 1532, 3064, 3469, 6128, 6938, 13876, 27752, 55504, 1328627, 2657254, 5314508, 10629016, 21258032]

約数ペア:

[(1, 21258032), (2, 10629016), (4, 5314508), (8, 2657254), (16, 1328627), (383, 55504), (766, 27752), (1532, 13876), (3064, 6938), (3469, 6128)]