81956367

素因数分解:

$3^6\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:195

約数の個数: 56

約数和(自身を含む): 132821360

約数和(自身を除く): 50864993

約数列:

[1, 3, 9, 19, 27, 57, 61, 81, 97, 171, 183, 243, 291, 513, 549, 729, 873, 1159, 1539, 1647, 1843, 2619, 3477, 4617, 4941, 5529, 5917, 7857, 10431, 13851, 14823, 16587, 17751, 23571, 31293, 44469, 49761, 53253, 70713, 93879, 112423, 149283, 159759, 281637, 337269, 447849, 479277, 844911, 1011807, 1343547, 1437831, 3035421, 4313493, 9106263, 27318789, 81956367]

約数ペア:

[(1, 81956367), (3, 27318789), (9, 9106263), (19, 4313493), (27, 3035421), (57, 1437831), (61, 1343547), (81, 1011807), (97, 844911), (171, 479277), (183, 447849), (243, 337269), (291, 281637), (513, 159759), (549, 149283), (729, 112423), (873, 93879), (1159, 70713), (1539, 53253), (1647, 49761), (1843, 44469), (2619, 31293), (3477, 23571), (4617, 17751), (4941, 16587), (5529, 14823), (5917, 13851), (7857, 10431)]