21099176

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{599}}^1$

素因数の和:666

約数の個数: 64

約数和(自身を含む): 49248000

約数和(自身を除く): 28148824

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 37, 56, 68, 74, 119, 136, 148, 238, 259, 296, 476, 518, 599, 629, 952, 1036, 1198, 1258, 2072, 2396, 2516, 4193, 4403, 4792, 5032, 8386, 8806, 10183, 16772, 17612, 20366, 22163, 33544, 35224, 40732, 44326, 71281, 81464, 88652, 142562, 155141, 177304, 285124, 310282, 376771, 570248, 620564, 753542, 1241128, 1507084, 2637397, 3014168, 5274794, 10549588, 21099176]

約数ペア:

[(1, 21099176), (2, 10549588), (4, 5274794), (7, 3014168), (8, 2637397), (14, 1507084), (17, 1241128), (28, 753542), (34, 620564), (37, 570248), (56, 376771), (68, 310282), (74, 285124), (119, 177304), (136, 155141), (148, 142562), (238, 88652), (259, 81464), (296, 71281), (476, 44326), (518, 40732), (599, 35224), (629, 33544), (952, 22163), (1036, 20366), (1198, 17612), (1258, 16772), (2072, 10183), (2396, 8806), (2516, 8386), (4193, 5032), (4403, 4792)]