21811712

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1$

素因数の和:173

約数の個数: 80

約数和(自身を含む): 48981240

約数和(自身を除く): 27169528

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 32, 52, 58, 64, 104, 113, 116, 128, 208, 226, 232, 256, 377, 416, 452, 464, 512, 754, 832, 904, 928, 1469, 1508, 1664, 1808, 1856, 2938, 3016, 3277, 3328, 3616, 3712, 5876, 6032, 6554, 6656, 7232, 7424, 11752, 12064, 13108, 14464, 14848, 23504, 24128, 26216, 28928, 42601, 47008, 48256, 52432, 57856, 85202, 94016, 96512, 104864, 170404, 188032, 193024, 209728, 340808, 376064, 419456, 681616, 752128, 838912, 1363232, 1677824, 2726464, 5452928, 10905856, 21811712]

約数ペア:

[(1, 21811712), (2, 10905856), (4, 5452928), (8, 2726464), (13, 1677824), (16, 1363232), (26, 838912), (29, 752128), (32, 681616), (52, 419456), (58, 376064), (64, 340808), (104, 209728), (113, 193024), (116, 188032), (128, 170404), (208, 104864), (226, 96512), (232, 94016), (256, 85202), (377, 57856), (416, 52432), (452, 48256), (464, 47008), (512, 42601), (754, 28928), (832, 26216), (904, 24128), (928, 23504), (1469, 14848), (1508, 14464), (1664, 13108), (1808, 12064), (1856, 11752), (2938, 7424), (3016, 7232), (3277, 6656), (3328, 6554), (3616, 6032), (3712, 5876)]