18981216

素因数分解:

$2^5\times 3^5\times {\mathrm{2441}}^1$

素因数の和:2466

約数の個数: 72

約数和(自身を含む): 55999944

約数和(自身を除く): 37018728

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 81, 96, 108, 144, 162, 216, 243, 288, 324, 432, 486, 648, 864, 972, 1296, 1944, 2441, 2592, 3888, 4882, 7323, 7776, 9764, 14646, 19528, 21969, 29292, 39056, 43938, 58584, 65907, 78112, 87876, 117168, 131814, 175752, 197721, 234336, 263628, 351504, 395442, 527256, 593163, 703008, 790884, 1054512, 1186326, 1581768, 2109024, 2372652, 3163536, 4745304, 6327072, 9490608, 18981216]

約数ペア:

[(1, 18981216), (2, 9490608), (3, 6327072), (4, 4745304), (6, 3163536), (8, 2372652), (9, 2109024), (12, 1581768), (16, 1186326), (18, 1054512), (24, 790884), (27, 703008), (32, 593163), (36, 527256), (48, 395442), (54, 351504), (72, 263628), (81, 234336), (96, 197721), (108, 175752), (144, 131814), (162, 117168), (216, 87876), (243, 78112), (288, 65907), (324, 58584), (432, 43938), (486, 39056), (648, 29292), (864, 21969), (972, 19528), (1296, 14646), (1944, 9764), (2441, 7776), (2592, 7323), (3888, 4882)]