20886795

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{479}}^1$

素因数の和:529

約数の個数: 64

約数和(自身を含む): 41472000

約数和(自身を除く): 20585205

約数列:

[1, 3, 5, 9, 15, 17, 19, 27, 45, 51, 57, 85, 95, 135, 153, 171, 255, 285, 323, 459, 479, 513, 765, 855, 969, 1437, 1615, 2295, 2395, 2565, 2907, 4311, 4845, 7185, 8143, 8721, 9101, 12933, 14535, 21555, 24429, 27303, 40715, 43605, 45505, 64665, 73287, 81909, 122145, 136515, 154717, 219861, 245727, 366435, 409545, 464151, 773585, 1099305, 1228635, 1392453, 2320755, 4177359, 6962265, 20886795]

約数ペア:

[(1, 20886795), (3, 6962265), (5, 4177359), (9, 2320755), (15, 1392453), (17, 1228635), (19, 1099305), (27, 773585), (45, 464151), (51, 409545), (57, 366435), (85, 245727), (95, 219861), (135, 154717), (153, 136515), (171, 122145), (255, 81909), (285, 73287), (323, 64665), (459, 45505), (479, 43605), (513, 40715), (765, 27303), (855, 24429), (969, 21555), (1437, 14535), (1615, 12933), (2295, 9101), (2395, 8721), (2565, 8143), (2907, 7185), (4311, 4845)]