15657957

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 27688960

約数和(自身を除く): 12031003

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 103, 127, 133, 171, 309, 381, 399, 721, 889, 927, 1143, 1197, 1957, 2163, 2413, 2667, 5871, 6489, 7239, 8001, 13081, 13699, 16891, 17613, 21717, 39243, 41097, 50673, 91567, 117729, 123291, 152019, 248539, 274701, 745617, 824103, 1739773, 2236851, 5219319, 15657957]

約数ペア:

[(1, 15657957), (3, 5219319), (7, 2236851), (9, 1739773), (19, 824103), (21, 745617), (57, 274701), (63, 248539), (103, 152019), (127, 123291), (133, 117729), (171, 91567), (309, 50673), (381, 41097), (399, 39243), (721, 21717), (889, 17613), (927, 16891), (1143, 13699), (1197, 13081), (1957, 8001), (2163, 7239), (2413, 6489), (2667, 5871)]