18874828

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2087}}^1$

素因数の和:2134

約数の個数: 48

約数和(自身を含む): 42094080

約数和(自身を除く): 23219252

約数列:

[1, 2, 4, 7, 14, 17, 19, 28, 34, 38, 68, 76, 119, 133, 238, 266, 323, 476, 532, 646, 1292, 2087, 2261, 4174, 4522, 8348, 9044, 14609, 29218, 35479, 39653, 58436, 70958, 79306, 141916, 158612, 248353, 277571, 496706, 555142, 674101, 993412, 1110284, 1348202, 2696404, 4718707, 9437414, 18874828]

約数ペア:

[(1, 18874828), (2, 9437414), (4, 4718707), (7, 2696404), (14, 1348202), (17, 1110284), (19, 993412), (28, 674101), (34, 555142), (38, 496706), (68, 277571), (76, 248353), (119, 158612), (133, 141916), (238, 79306), (266, 70958), (323, 58436), (476, 39653), (532, 35479), (646, 29218), (1292, 14609), (2087, 9044), (2261, 8348), (4174, 4522)]