21206520392

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{223}}^1\times {\mathrm{3623}}^1$

素因数の和:4062

約数の個数: 64

約数和(自身を含む): 42520826880

約数和(自身を除く): 21314306488

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 193, 223, 386, 446, 772, 892, 1544, 1784, 3281, 3623, 3791, 6562, 7246, 7582, 13124, 14492, 15164, 26248, 28984, 30328, 43039, 61591, 86078, 123182, 172156, 246364, 344312, 492728, 699239, 731663, 807929, 1398478, 1463326, 1615858, 2796956, 2926652, 3231716, 5593912, 5853304, 6463432, 11887063, 13734793, 23774126, 27469586, 47548252, 54939172, 95096504, 109878344, 155930297, 311860594, 623721188, 1247442376, 2650815049, 5301630098, 10603260196, 21206520392]

約数ペア:

[(1, 21206520392), (2, 10603260196), (4, 5301630098), (8, 2650815049), (17, 1247442376), (34, 623721188), (68, 311860594), (136, 155930297), (193, 109878344), (223, 95096504), (386, 54939172), (446, 47548252), (772, 27469586), (892, 23774126), (1544, 13734793), (1784, 11887063), (3281, 6463432), (3623, 5853304), (3791, 5593912), (6562, 3231716), (7246, 2926652), (7582, 2796956), (13124, 1615858), (14492, 1463326), (15164, 1398478), (26248, 807929), (28984, 731663), (30328, 699239), (43039, 492728), (61591, 344312), (86078, 246364), (123182, 172156)]