19857872

素因数分解:

$2^4\times {\mathrm{181}}^1\times {\mathrm{6857}}^1$

素因数の和:7046

約数の個数: 20

約数和(自身を含む): 38692836

約数和(自身を除く): 18834964

約数列:

[1, 2, 4, 8, 16, 181, 362, 724, 1448, 2896, 6857, 13714, 27428, 54856, 109712, 1241117, 2482234, 4964468, 9928936, 19857872]

約数ペア:

[(1, 19857872), (2, 9928936), (4, 4964468), (8, 2482234), (16, 1241117), (181, 109712), (362, 54856), (724, 27428), (1448, 13714), (2896, 6857)]