25997643

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{587}}^1$

素因数の和:656

約数の個数: 48

約数和(自身を含む): 46475520

約数和(自身を除く): 20477877

約数列:

[1, 3, 7, 9, 19, 21, 37, 57, 63, 111, 133, 171, 259, 333, 399, 587, 703, 777, 1197, 1761, 2109, 2331, 4109, 4921, 5283, 6327, 11153, 12327, 14763, 21719, 33459, 36981, 44289, 65157, 78071, 100377, 152033, 195471, 234213, 412661, 456099, 702639, 1237983, 1368297, 2888627, 3713949, 8665881, 25997643]

約数ペア:

[(1, 25997643), (3, 8665881), (7, 3713949), (9, 2888627), (19, 1368297), (21, 1237983), (37, 702639), (57, 456099), (63, 412661), (111, 234213), (133, 195471), (171, 152033), (259, 100377), (333, 78071), (399, 65157), (587, 44289), (703, 36981), (777, 33459), (1197, 21719), (1761, 14763), (2109, 12327), (2331, 11153), (4109, 6327), (4921, 5283)]