21674352

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{257}}^1$

素因数の和:526

約数の個数: 80

約数和(自身を含む): 64495872

約数和(自身を除く): 42821520

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 251, 257, 336, 502, 514, 753, 771, 1004, 1028, 1506, 1542, 1757, 1799, 2008, 2056, 3012, 3084, 3514, 3598, 4016, 4112, 5271, 5397, 6024, 6168, 7028, 7196, 10542, 10794, 12048, 12336, 14056, 14392, 21084, 21588, 28112, 28784, 42168, 43176, 64507, 84336, 86352, 129014, 193521, 258028, 387042, 451549, 516056, 774084, 903098, 1032112, 1354647, 1548168, 1806196, 2709294, 3096336, 3612392, 5418588, 7224784, 10837176, 21674352]

約数ペア:

[(1, 21674352), (2, 10837176), (3, 7224784), (4, 5418588), (6, 3612392), (7, 3096336), (8, 2709294), (12, 1806196), (14, 1548168), (16, 1354647), (21, 1032112), (24, 903098), (28, 774084), (42, 516056), (48, 451549), (56, 387042), (84, 258028), (112, 193521), (168, 129014), (251, 86352), (257, 84336), (336, 64507), (502, 43176), (514, 42168), (753, 28784), (771, 28112), (1004, 21588), (1028, 21084), (1506, 14392), (1542, 14056), (1757, 12336), (1799, 12048), (2008, 10794), (2056, 10542), (3012, 7196), (3084, 7028), (3514, 6168), (3598, 6024), (4016, 5397), (4112, 5271)]