19883728

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{65407}}^1$

素因数の和:65434

約数の個数: 20

約数和(自身を含む): 40552960

約数和(自身を除く): 20669232

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 65407, 130814, 261628, 523256, 1046512, 1242733, 2485466, 4970932, 9941864, 19883728]

約数ペア:

[(1, 19883728), (2, 9941864), (4, 4970932), (8, 2485466), (16, 1242733), (19, 1046512), (38, 523256), (76, 261628), (152, 130814), (304, 65407)]