81993261

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{241}}^1\times {\mathrm{953}}^1$

素因数の和:1221

約数の個数: 32

約数和(自身を含む): 132979968

約数和(自身を除く): 50986707

約数列:

[1, 3, 7, 17, 21, 51, 119, 241, 357, 723, 953, 1687, 2859, 4097, 5061, 6671, 12291, 16201, 20013, 28679, 48603, 86037, 113407, 229673, 340221, 689019, 1607711, 3904441, 4823133, 11713323, 27331087, 81993261]

約数ペア:

[(1, 81993261), (3, 27331087), (7, 11713323), (17, 4823133), (21, 3904441), (51, 1607711), (119, 689019), (241, 340221), (357, 229673), (723, 113407), (953, 86037), (1687, 48603), (2859, 28679), (4097, 20013), (5061, 16201), (6671, 12291)]