20837971

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{15919}}^1$

素因数の和:15954

約数の個数: 16

約数和(自身を含む): 27509760

約数和(自身を除く): 6671789

約数列:

[1, 7, 11, 17, 77, 119, 187, 1309, 15919, 111433, 175109, 270623, 1225763, 1894361, 2976853, 20837971]

約数ペア:

[(1, 20837971), (7, 2976853), (11, 1894361), (17, 1225763), (77, 270623), (119, 175109), (187, 111433), (1309, 15919)]