25553138

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1$

素因数の和:243

約数の個数: 48

約数和(自身を含む): 45852480

約数和(自身を除く): 20299342

約数列:

[1, 2, 13, 19, 23, 26, 38, 46, 169, 173, 247, 299, 338, 346, 437, 494, 598, 874, 2249, 3211, 3287, 3887, 3979, 4498, 5681, 6422, 6574, 7774, 7958, 11362, 29237, 42731, 51727, 58474, 73853, 75601, 85462, 103454, 147706, 151202, 555503, 672451, 982813, 1111006, 1344902, 1965626, 12776569, 25553138]

約数ペア:

[(1, 25553138), (2, 12776569), (13, 1965626), (19, 1344902), (23, 1111006), (26, 982813), (38, 672451), (46, 555503), (169, 151202), (173, 147706), (247, 103454), (299, 85462), (338, 75601), (346, 73853), (437, 58474), (494, 51727), (598, 42731), (874, 29237), (2249, 11362), (3211, 7958), (3287, 7774), (3887, 6574), (3979, 6422), (4498, 5681)]