20561142

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{489551}}^1$

素因数の和:489563

約数の個数: 16

約数和(自身を含む): 46996992

約数和(自身を除く): 26435850

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 489551, 979102, 1468653, 2937306, 3426857, 6853714, 10280571, 20561142]

約数ペア:

[(1, 20561142), (2, 10280571), (3, 6853714), (6, 3426857), (7, 2937306), (14, 1468653), (21, 979102), (42, 489551)]