19921426

素因数分解:

$2^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{2213}}^1$

素因数の和:2865

約数の個数: 16

約数和(自身を含む): 34219584

約数和(自身を除く): 14298158

約数列:

[1, 2, 7, 14, 643, 1286, 2213, 4426, 4501, 9002, 15491, 30982, 1422959, 2845918, 9960713, 19921426]

約数ペア:

[(1, 19921426), (2, 9960713), (7, 2845918), (14, 1422959), (643, 30982), (1286, 15491), (2213, 9002), (4426, 4501)]