16681649978

素因数分解:

$2^1\times 7^1\times {\mathrm{1427}}^1\times {\mathrm{835001}}^1$

素因数の和:836437

約数の個数: 16

約数和(自身を含む): 28617188544

約数和(自身を除く): 11935538566

約数列:

[1, 2, 7, 14, 1427, 2854, 9989, 19978, 835001, 1670002, 5845007, 11690014, 1191546427, 2383092854, 8340824989, 16681649978]

約数ペア:

[(1, 16681649978), (2, 8340824989), (7, 2383092854), (14, 1191546427), (1427, 11690014), (2854, 5845007), (9989, 1670002), (19978, 835001)]