81061407

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1301}}^1$

素因数の和:1380

約数の個数: 48

約数和(自身を含む): 142990848

約数和(自身を除く): 61929441

約数列:

[1, 3, 7, 9, 21, 23, 43, 63, 69, 129, 161, 207, 301, 387, 483, 903, 989, 1301, 1449, 2709, 2967, 3903, 6923, 8901, 9107, 11709, 20769, 27321, 29923, 55943, 62307, 81963, 89769, 167829, 209461, 269307, 391601, 503487, 628383, 1174803, 1286689, 1885149, 3524409, 3860067, 9006823, 11580201, 27020469, 81061407]

約数ペア:

[(1, 81061407), (3, 27020469), (7, 11580201), (9, 9006823), (21, 3860067), (23, 3524409), (43, 1885149), (63, 1286689), (69, 1174803), (129, 628383), (161, 503487), (207, 391601), (301, 269307), (387, 209461), (483, 167829), (903, 89769), (989, 81963), (1301, 62307), (1449, 55943), (2709, 29923), (2967, 27321), (3903, 20769), (6923, 11709), (8901, 9107)]