21867440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2297}}^1$

素因数の和:2334

約数の個数: 80

約数和(自身を含む): 61549632

約数和(自身を除く): 39682192

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 56, 68, 70, 80, 85, 112, 119, 136, 140, 170, 238, 272, 280, 340, 476, 560, 595, 680, 952, 1190, 1360, 1904, 2297, 2380, 4594, 4760, 9188, 9520, 11485, 16079, 18376, 22970, 32158, 36752, 39049, 45940, 64316, 78098, 80395, 91880, 128632, 156196, 160790, 183760, 195245, 257264, 273343, 312392, 321580, 390490, 546686, 624784, 643160, 780980, 1093372, 1286320, 1366715, 1561960, 2186744, 2733430, 3123920, 4373488, 5466860, 10933720, 21867440]

約数ペア:

[(1, 21867440), (2, 10933720), (4, 5466860), (5, 4373488), (7, 3123920), (8, 2733430), (10, 2186744), (14, 1561960), (16, 1366715), (17, 1286320), (20, 1093372), (28, 780980), (34, 643160), (35, 624784), (40, 546686), (56, 390490), (68, 321580), (70, 312392), (80, 273343), (85, 257264), (112, 195245), (119, 183760), (136, 160790), (140, 156196), (170, 128632), (238, 91880), (272, 80395), (280, 78098), (340, 64316), (476, 45940), (560, 39049), (595, 36752), (680, 32158), (952, 22970), (1190, 18376), (1360, 16079), (1904, 11485), (2297, 9520), (2380, 9188), (4594, 4760)]