20381438

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{132347}}^1$

素因数の和:132367

約数の個数: 16

約数和(自身を含む): 38116224

約数和(自身を除く): 17734786

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 132347, 264694, 926429, 1455817, 1852858, 2911634, 10190719, 20381438]

約数ペア:

[(1, 20381438), (2, 10190719), (7, 2911634), (11, 1852858), (14, 1455817), (22, 926429), (77, 264694), (154, 132347)]