20791386

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2143}}^1$

素因数の和:2176

約数の個数: 72

約数和(自身を含む): 57193344

約数和(自身を除く): 36401958

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 49, 63, 66, 77, 98, 99, 126, 147, 154, 198, 231, 294, 441, 462, 539, 693, 882, 1078, 1386, 1617, 2143, 3234, 4286, 4851, 6429, 9702, 12858, 15001, 19287, 23573, 30002, 38574, 45003, 47146, 70719, 90006, 105007, 135009, 141438, 165011, 210014, 212157, 270018, 315021, 330022, 424314, 495033, 630042, 945063, 990066, 1155077, 1485099, 1890126, 2310154, 2970198, 3465231, 6930462, 10395693, 20791386]

約数ペア:

[(1, 20791386), (2, 10395693), (3, 6930462), (6, 3465231), (7, 2970198), (9, 2310154), (11, 1890126), (14, 1485099), (18, 1155077), (21, 990066), (22, 945063), (33, 630042), (42, 495033), (49, 424314), (63, 330022), (66, 315021), (77, 270018), (98, 212157), (99, 210014), (126, 165011), (147, 141438), (154, 135009), (198, 105007), (231, 90006), (294, 70719), (441, 47146), (462, 45003), (539, 38574), (693, 30002), (882, 23573), (1078, 19287), (1386, 15001), (1617, 12858), (2143, 9702), (3234, 6429), (4286, 4851)]