25431813

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:136

約数の個数: 80

約数和(自身を含む): 46417536

約数和(自身を除く): 20985723

約数列:

[1, 3, 9, 11, 17, 23, 27, 33, 51, 69, 73, 81, 99, 153, 187, 207, 219, 253, 297, 391, 459, 561, 621, 657, 759, 803, 891, 1173, 1241, 1377, 1679, 1683, 1863, 1971, 2277, 2409, 3519, 3723, 4301, 5037, 5049, 5913, 6831, 7227, 10557, 11169, 12903, 13651, 15111, 15147, 18469, 20493, 21681, 28543, 31671, 33507, 38709, 40953, 45333, 55407, 65043, 85629, 100521, 116127, 122859, 135999, 166221, 256887, 313973, 348381, 368577, 498663, 770661, 941919, 1105731, 1495989, 2311983, 2825757, 8477271, 25431813]

約数ペア:

[(1, 25431813), (3, 8477271), (9, 2825757), (11, 2311983), (17, 1495989), (23, 1105731), (27, 941919), (33, 770661), (51, 498663), (69, 368577), (73, 348381), (81, 313973), (99, 256887), (153, 166221), (187, 135999), (207, 122859), (219, 116127), (253, 100521), (297, 85629), (391, 65043), (459, 55407), (561, 45333), (621, 40953), (657, 38709), (759, 33507), (803, 31671), (891, 28543), (1173, 21681), (1241, 20493), (1377, 18469), (1679, 15147), (1683, 15111), (1863, 13651), (1971, 12903), (2277, 11169), (2409, 10557), (3519, 7227), (3723, 6831), (4301, 5913), (5037, 5049)]