20189554

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131101}}^1$

素因数の和:131121

約数の個数: 16

約数和(自身を含む): 37757376

約数和(自身を除く): 17567822

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 131101, 262202, 917707, 1442111, 1835414, 2884222, 10094777, 20189554]

約数ペア:

[(1, 20189554), (2, 10094777), (7, 2884222), (11, 1835414), (14, 1442111), (22, 917707), (77, 262202), (154, 131101)]