81234321

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{1543}}^1$

素因数の和:1685

約数の個数: 32

約数和(自身を含む): 130437120

約数和(自身を除く): 49202799

約数列:

[1, 3, 7, 21, 23, 69, 109, 161, 327, 483, 763, 1543, 2289, 2507, 4629, 7521, 10801, 17549, 32403, 35489, 52647, 106467, 168187, 248423, 504561, 745269, 1177309, 3531927, 3868301, 11604903, 27078107, 81234321]

約数ペア:

[(1, 81234321), (3, 27078107), (7, 11604903), (21, 3868301), (23, 3531927), (69, 1177309), (109, 745269), (161, 504561), (327, 248423), (483, 168187), (763, 106467), (1543, 52647), (2289, 35489), (2507, 32403), (4629, 17549), (7521, 10801)]