20667493

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1931}}^1$

素因数の和:2088

約数の個数: 16

約数和(自身を含む): 25966080

約数和(自身を除く): 5298587

約数列:

[1, 7, 11, 77, 139, 973, 1529, 1931, 10703, 13517, 21241, 148687, 268409, 1878863, 2952499, 20667493]

約数ペア:

[(1, 20667493), (7, 2952499), (11, 1878863), (77, 268409), (139, 148687), (973, 21241), (1529, 13517), (1931, 10703)]