25517187

素因数分解:

$3^6\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:135

約数の個数: 56

約数和(自身を含む): 42495840

約数和(自身を除く): 16978653

約数列:

[1, 3, 9, 17, 27, 29, 51, 71, 81, 87, 153, 213, 243, 261, 459, 493, 639, 729, 783, 1207, 1377, 1479, 1917, 2059, 2349, 3621, 4131, 4437, 5751, 6177, 7047, 10863, 12393, 13311, 17253, 18531, 21141, 32589, 35003, 39933, 51759, 55593, 97767, 105009, 119799, 166779, 293301, 315027, 359397, 500337, 879903, 945081, 1501011, 2835243, 8505729, 25517187]

約数ペア:

[(1, 25517187), (3, 8505729), (9, 2835243), (17, 1501011), (27, 945081), (29, 879903), (51, 500337), (71, 359397), (81, 315027), (87, 293301), (153, 166779), (213, 119799), (243, 105009), (261, 97767), (459, 55593), (493, 51759), (639, 39933), (729, 35003), (783, 32589), (1207, 21141), (1377, 18531), (1479, 17253), (1917, 13311), (2059, 12393), (2349, 10863), (3621, 7047), (4131, 6177), (4437, 5751)]