20520494

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{1759}}^1$

素因数の和:2087

約数の個数: 16

約数和(自身を含む): 32524800

約数和(自身を除く): 12004306

約数列:

[1, 2, 19, 38, 307, 614, 1759, 3518, 5833, 11666, 33421, 66842, 540013, 1080026, 10260247, 20520494]

約数ペア:

[(1, 20520494), (2, 10260247), (19, 1080026), (38, 540013), (307, 66842), (614, 33421), (1759, 11666), (3518, 5833)]