21056047

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:175

約数の個数: 24

約数和(自身を含む): 24359616

約数和(自身を除く): 3303569

約数列:

[1, 17, 19, 47, 73, 323, 361, 799, 893, 1241, 1387, 3431, 6137, 15181, 16967, 23579, 26353, 58327, 65189, 288439, 448001, 1108213, 1238591, 21056047]

約数ペア:

[(1, 21056047), (17, 1238591), (19, 1108213), (47, 448001), (73, 288439), (323, 65189), (361, 58327), (799, 26353), (893, 23579), (1241, 16967), (1387, 15181), (3431, 6137)]