21345322

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{1999}}^1$

素因数の和:2301

約数の個数: 16

約数和(自身を含む): 33840000

約数和(自身を除く): 12494678

約数列:

[1, 2, 19, 38, 281, 562, 1999, 3998, 5339, 10678, 37981, 75962, 561719, 1123438, 10672661, 21345322]

約数ペア:

[(1, 21345322), (2, 10672661), (19, 1123438), (38, 561719), (281, 75962), (562, 37981), (1999, 10678), (3998, 5339)]