178972407

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{20107}}^1$

素因数の和:20179

約数の個数: 24

約数和(自身を含む): 276042624

約数和(自身を除く): 97070217

約数列:

[1, 3, 9, 23, 43, 69, 129, 207, 387, 989, 2967, 8901, 20107, 60321, 180963, 462461, 864601, 1387383, 2593803, 4162149, 7781409, 19885823, 59657469, 178972407]

約数ペア:

[(1, 178972407), (3, 59657469), (9, 19885823), (23, 7781409), (43, 4162149), (69, 2593803), (129, 1387383), (207, 864601), (387, 462461), (989, 180963), (2967, 60321), (8901, 20107)]