21148216

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{139133}}^1$

素因数の和:139158

約数の個数: 16

約数和(自身を含む): 41740200

約数和(自身を除く): 20591984

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 139133, 278266, 556532, 1113064, 2643527, 5287054, 10574108, 21148216]

約数ペア:

[(1, 21148216), (2, 10574108), (4, 5287054), (8, 2643527), (19, 1113064), (38, 556532), (76, 278266), (152, 139133)]