25391421

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:191

約数の個数: 64

約数和(自身を含む): 44789760

約数和(自身を除く): 19398339

約数列:

[1, 3, 9, 11, 17, 27, 33, 47, 51, 99, 107, 141, 153, 187, 297, 321, 423, 459, 517, 561, 799, 963, 1177, 1269, 1551, 1683, 1819, 2397, 2889, 3531, 4653, 5029, 5049, 5457, 7191, 8789, 10593, 13959, 15087, 16371, 20009, 21573, 26367, 31779, 45261, 49113, 55319, 60027, 79101, 85493, 135783, 165957, 180081, 237303, 256479, 497871, 540243, 769437, 940423, 1493613, 2308311, 2821269, 8463807, 25391421]

約数ペア:

[(1, 25391421), (3, 8463807), (9, 2821269), (11, 2308311), (17, 1493613), (27, 940423), (33, 769437), (47, 540243), (51, 497871), (99, 256479), (107, 237303), (141, 180081), (153, 165957), (187, 135783), (297, 85493), (321, 79101), (423, 60027), (459, 55319), (517, 49113), (561, 45261), (799, 31779), (963, 26367), (1177, 21573), (1269, 20009), (1551, 16371), (1683, 15087), (1819, 13959), (2397, 10593), (2889, 8789), (3531, 7191), (4653, 5457), (5029, 5049)]