20187797476

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1771481}}^1$

素因数の和:1771540

約数の個数: 48

約数和(自身を含む): 45236564352

約数和(自身を除く): 25048766876

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 37, 44, 74, 77, 148, 154, 259, 308, 407, 518, 814, 1036, 1628, 2849, 5698, 11396, 1771481, 3542962, 7085924, 12400367, 19486291, 24800734, 38972582, 49601468, 65544797, 77945164, 131089594, 136404037, 262179188, 272808074, 458813579, 545616148, 720992767, 917627158, 1441985534, 1835254316, 2883971068, 5046949369, 10093898738, 20187797476]

約数ペア:

[(1, 20187797476), (2, 10093898738), (4, 5046949369), (7, 2883971068), (11, 1835254316), (14, 1441985534), (22, 917627158), (28, 720992767), (37, 545616148), (44, 458813579), (74, 272808074), (77, 262179188), (148, 136404037), (154, 131089594), (259, 77945164), (308, 65544797), (407, 49601468), (518, 38972582), (814, 24800734), (1036, 19486291), (1628, 12400367), (2849, 7085924), (5698, 3542962), (11396, 1771481)]