20979966

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{499523}}^1$

素因数の和:499535

約数の個数: 16

約数和(自身を含む): 47954304

約数和(自身を除く): 26974338

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 499523, 999046, 1498569, 2997138, 3496661, 6993322, 10489983, 20979966]

約数ペア:

[(1, 20979966), (2, 10489983), (3, 6993322), (6, 3496661), (7, 2997138), (14, 1498569), (21, 999046), (42, 499523)]