221401081

素因数分解:

${\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{2909}}^1$

素因数の和:2985

約数の個数: 24

約数和(自身を含む): 264728520

約数和(自身を除く): 43327439

約数列:

[1, 11, 17, 37, 121, 187, 407, 629, 2057, 2909, 4477, 6919, 31999, 49453, 76109, 107633, 351989, 543983, 1183963, 1829761, 5983813, 13023593, 20127371, 221401081]

約数ペア:

[(1, 221401081), (11, 20127371), (17, 13023593), (37, 5983813), (121, 1829761), (187, 1183963), (407, 543983), (629, 351989), (2057, 107633), (2909, 76109), (4477, 49453), (6919, 31999)]