18909177

素因数分解:

$3^1\times 7^1\times {\mathrm{631}}^1\times {\mathrm{1427}}^1$

素因数の和:2068

約数の個数: 16

約数和(自身を含む): 28879872

約数和(自身を除く): 9970695

約数列:

[1, 3, 7, 21, 631, 1427, 1893, 4281, 4417, 9989, 13251, 29967, 900437, 2701311, 6303059, 18909177]

約数ペア:

[(1, 18909177), (3, 6303059), (7, 2701311), (21, 900437), (631, 29967), (1427, 13251), (1893, 9989), (4281, 4417)]