20808821033

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{1049}}^1$

素因数の和:1255

約数の個数: 96

約数和(自身を含む): 30164400000

約数和(自身を除く): 9355578967

約数列:

[1, 7, 11, 13, 19, 49, 77, 91, 133, 143, 149, 209, 247, 539, 637, 931, 1001, 1043, 1049, 1463, 1639, 1729, 1937, 2717, 2831, 7007, 7301, 7343, 10241, 11473, 11539, 12103, 13559, 13637, 19019, 19817, 19931, 21307, 31141, 36803, 51401, 80311, 80773, 94913, 95459, 133133, 138719, 139517, 149149, 150007, 156301, 217987, 219241, 257621, 259103, 404833, 565411, 668213, 976619, 1044043, 1050049, 1094107, 1525909, 1534687, 1719311, 1803347, 1813721, 2031913, 2833831, 2850133, 2969719, 7350343, 7658749, 10742809, 12035177, 12696047, 14223391, 19836817, 19950931, 20788033, 22351043, 32666909, 38606347, 84246239, 99563737, 139656517, 145516231, 156457301, 228668363, 270244429, 424669817, 1095201107, 1600678541, 1891711003, 2972688719, 20808821033]

約数ペア:

[(1, 20808821033), (7, 2972688719), (11, 1891711003), (13, 1600678541), (19, 1095201107), (49, 424669817), (77, 270244429), (91, 228668363), (133, 156457301), (143, 145516231), (149, 139656517), (209, 99563737), (247, 84246239), (539, 38606347), (637, 32666909), (931, 22351043), (1001, 20788033), (1043, 19950931), (1049, 19836817), (1463, 14223391), (1639, 12696047), (1729, 12035177), (1937, 10742809), (2717, 7658749), (2831, 7350343), (7007, 2969719), (7301, 2850133), (7343, 2833831), (10241, 2031913), (11473, 1813721), (11539, 1803347), (12103, 1719311), (13559, 1534687), (13637, 1525909), (19019, 1094107), (19817, 1050049), (19931, 1044043), (21307, 976619), (31141, 668213), (36803, 565411), (51401, 404833), (80311, 259103), (80773, 257621), (94913, 219241), (95459, 217987), (133133, 156301), (138719, 150007), (139517, 149149)]