81458559

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1259}}^1$

素因数の和:1364

約数の個数: 48

約数和(自身を含む): 146764800

約数和(自身を除く): 65306241

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 79, 91, 117, 237, 273, 553, 711, 819, 1027, 1259, 1659, 3081, 3777, 4977, 7189, 8813, 9243, 11331, 16367, 21567, 26439, 49101, 64701, 79317, 99461, 114569, 147303, 298383, 343707, 696227, 895149, 1031121, 1292993, 2088681, 3878979, 6266043, 9050951, 11636937, 27152853, 81458559]

約数ペア:

[(1, 81458559), (3, 27152853), (7, 11636937), (9, 9050951), (13, 6266043), (21, 3878979), (39, 2088681), (63, 1292993), (79, 1031121), (91, 895149), (117, 696227), (237, 343707), (273, 298383), (553, 147303), (711, 114569), (819, 99461), (1027, 79317), (1259, 64701), (1659, 49101), (3081, 26439), (3777, 21567), (4977, 16367), (7189, 11331), (8813, 9243)]