138516091

素因数分解:

$7^4\times {\mathrm{31}}^1\times {\mathrm{1861}}^1$

素因数の和:1920

約数の個数: 20

約数和(自身を含む): 166894784

約数和(自身を除く): 28378693

約数列:

[1, 7, 31, 49, 217, 343, 1519, 1861, 2401, 10633, 13027, 57691, 74431, 91189, 403837, 638323, 2826859, 4468261, 19788013, 138516091]

約数ペア:

[(1, 138516091), (7, 19788013), (31, 4468261), (49, 2826859), (217, 638323), (343, 403837), (1519, 91189), (1861, 74431), (2401, 57691), (10633, 13027)]