20544418

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{971}}^1$

素因数の和:1193

約数の個数: 16

約数和(自身を含む): 31492800

約数和(自身を除く): 10948382

約数列:

[1, 2, 71, 142, 149, 298, 971, 1942, 10579, 21158, 68941, 137882, 144679, 289358, 10272209, 20544418]

約数ペア:

[(1, 20544418), (2, 10272209), (71, 289358), (142, 144679), (149, 137882), (298, 68941), (971, 21158), (1942, 10579)]