178839171

素因数分解:

$3^4\times 7^3\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:231

約数の個数: 80

約数和(自身を含む): 321182400

約数和(自身を除く): 142343229

約数列:

[1, 3, 7, 9, 21, 27, 41, 49, 63, 81, 123, 147, 157, 189, 287, 343, 369, 441, 471, 567, 861, 1029, 1099, 1107, 1323, 1413, 2009, 2583, 3087, 3297, 3321, 3969, 4239, 6027, 6437, 7693, 7749, 9261, 9891, 12717, 14063, 18081, 19311, 23079, 23247, 27783, 29673, 42189, 45059, 53851, 54243, 57933, 69237, 89019, 126567, 135177, 161553, 162729, 173799, 207711, 315413, 379701, 405531, 484659, 521397, 623133, 946239, 1139103, 1216593, 1453977, 2207891, 2838717, 3649779, 4361931, 6623673, 8516151, 19871019, 25548453, 59613057, 178839171]

約数ペア:

[(1, 178839171), (3, 59613057), (7, 25548453), (9, 19871019), (21, 8516151), (27, 6623673), (41, 4361931), (49, 3649779), (63, 2838717), (81, 2207891), (123, 1453977), (147, 1216593), (157, 1139103), (189, 946239), (287, 623133), (343, 521397), (369, 484659), (441, 405531), (471, 379701), (567, 315413), (861, 207711), (1029, 173799), (1099, 162729), (1107, 161553), (1323, 135177), (1413, 126567), (2009, 89019), (2583, 69237), (3087, 57933), (3297, 54243), (3321, 53851), (3969, 45059), (4239, 42189), (6027, 29673), (6437, 27783), (7693, 23247), (7749, 23079), (9261, 19311), (9891, 18081), (12717, 14063)]