81208522

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{2903}}^1$

素因数の和:3173

約数の個数: 16

約数和(自身を含む): 124198272

約数和(自身を除く): 42989750

約数列:

[1, 2, 71, 142, 197, 394, 2903, 5806, 13987, 27974, 206113, 412226, 571891, 1143782, 40604261, 81208522]

約数ペア:

[(1, 81208522), (2, 40604261), (71, 1143782), (142, 571891), (197, 412226), (394, 206113), (2903, 27974), (5806, 13987)]