123981

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2$

素因数の和:61

約数の個数: 24

約数和(自身を含む): 206304

約数和(自身を除く): 82323

約数列:

[1, 3, 11, 13, 17, 33, 39, 51, 143, 187, 221, 289, 429, 561, 663, 867, 2431, 3179, 3757, 7293, 9537, 11271, 41327, 123981]

約数ペア:

[(1, 123981), (3, 41327), (11, 11271), (13, 9537), (17, 7293), (33, 3757), (39, 3179), (51, 2431), (143, 867), (187, 663), (221, 561), (289, 429)]