25316721

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 41408640

約数和(自身を除く): 16091919

約数列:

[1, 3, 9, 19, 23, 41, 57, 69, 123, 157, 171, 207, 369, 437, 471, 779, 943, 1311, 1413, 2337, 2829, 2983, 3611, 3933, 6437, 7011, 8487, 8949, 10833, 17917, 19311, 26847, 32499, 53751, 57933, 68609, 122303, 148051, 161253, 205827, 366909, 444153, 617481, 1100727, 1332459, 2812969, 8438907, 25316721]

約数ペア:

[(1, 25316721), (3, 8438907), (9, 2812969), (19, 1332459), (23, 1100727), (41, 617481), (57, 444153), (69, 366909), (123, 205827), (157, 161253), (171, 148051), (207, 122303), (369, 68609), (437, 57933), (471, 53751), (779, 32499), (943, 26847), (1311, 19311), (1413, 17917), (2337, 10833), (2829, 8949), (2983, 8487), (3611, 7011), (3933, 6437)]