27789237

素因数分解:

$3^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2$

素因数の和:101

約数の個数: 72

約数和(自身を含む): 52049088

約数和(自身を除く): 24259851

約数列:

[1, 3, 7, 9, 17, 21, 27, 31, 51, 63, 81, 93, 119, 153, 189, 217, 243, 279, 357, 459, 527, 567, 651, 837, 961, 1071, 1377, 1581, 1701, 1953, 2511, 2883, 3213, 3689, 4131, 4743, 5859, 6727, 7533, 8649, 9639, 11067, 14229, 16337, 17577, 20181, 25947, 28917, 33201, 42687, 49011, 52731, 60543, 77841, 99603, 114359, 128061, 147033, 181629, 233523, 298809, 343077, 441099, 544887, 896427, 1029231, 1323297, 1634661, 3087693, 3969891, 9263079, 27789237]

約数ペア:

[(1, 27789237), (3, 9263079), (7, 3969891), (9, 3087693), (17, 1634661), (21, 1323297), (27, 1029231), (31, 896427), (51, 544887), (63, 441099), (81, 343077), (93, 298809), (119, 233523), (153, 181629), (189, 147033), (217, 128061), (243, 114359), (279, 99603), (357, 77841), (459, 60543), (527, 52731), (567, 49011), (651, 42687), (837, 33201), (961, 28917), (1071, 25947), (1377, 20181), (1581, 17577), (1701, 16337), (1953, 14229), (2511, 11067), (2883, 9639), (3213, 8649), (3689, 7533), (4131, 6727), (4743, 5859)]