1216182681

素因数分解:

$3^6\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3907}}^1$

素因数の和:3993

約数の個数: 56

約数和(自身を含む): 2118636224

約数和(自身を除く): 902453543

約数列:

[1, 3, 7, 9, 21, 27, 61, 63, 81, 183, 189, 243, 427, 549, 567, 729, 1281, 1647, 1701, 3843, 3907, 4941, 5103, 11529, 11721, 14823, 27349, 34587, 35163, 44469, 82047, 103761, 105489, 238327, 246141, 311283, 316467, 714981, 738423, 949401, 1668289, 2144943, 2215269, 2848203, 5004867, 6434829, 6645807, 15014601, 19304487, 19937421, 45043803, 57913461, 135131409, 173740383, 405394227, 1216182681]

約数ペア:

[(1, 1216182681), (3, 405394227), (7, 173740383), (9, 135131409), (21, 57913461), (27, 45043803), (61, 19937421), (63, 19304487), (81, 15014601), (183, 6645807), (189, 6434829), (243, 5004867), (427, 2848203), (549, 2215269), (567, 2144943), (729, 1668289), (1281, 949401), (1647, 738423), (1701, 714981), (3843, 316467), (3907, 311283), (4941, 246141), (5103, 238327), (11529, 105489), (11721, 103761), (14823, 82047), (27349, 44469), (34587, 35163)]