20219397

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{647}}^1\times {\mathrm{947}}^1$

素因数の和:1608

約数の個数: 16

約数和(自身を含む): 29486592

約数和(自身を除く): 9267195

約数列:

[1, 3, 11, 33, 647, 947, 1941, 2841, 7117, 10417, 21351, 31251, 612709, 1838127, 6739799, 20219397]

約数ペア:

[(1, 20219397), (3, 6739799), (11, 1838127), (33, 612709), (647, 31251), (947, 21351), (1941, 10417), (2841, 7117)]