31415813

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{12923}}^1$

素因数の和:12964

約数の個数: 16

約数和(自身を含む): 39082176

約数和(自身を除く): 7666363

約数列:

[1, 11, 13, 17, 143, 187, 221, 2431, 12923, 142153, 167999, 219691, 1847989, 2416601, 2855983, 31415813]

約数ペア:

[(1, 31415813), (11, 2855983), (13, 2416601), (17, 1847989), (143, 219691), (187, 167999), (221, 142153), (2431, 12923)]