19027778

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{929}}^1$

素因数の和:975

約数の個数: 48

約数和(自身を含む): 38167200

約数和(自身を除く): 19139422

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 49, 77, 98, 133, 154, 209, 266, 418, 539, 929, 931, 1078, 1463, 1858, 1862, 2926, 6503, 10219, 10241, 13006, 17651, 20438, 20482, 35302, 45521, 71533, 91042, 123557, 143066, 194161, 247114, 388322, 500731, 864899, 1001462, 1359127, 1729798, 2718254, 9513889, 19027778]

約数ペア:

[(1, 19027778), (2, 9513889), (7, 2718254), (11, 1729798), (14, 1359127), (19, 1001462), (22, 864899), (38, 500731), (49, 388322), (77, 247114), (98, 194161), (133, 143066), (154, 123557), (209, 91042), (266, 71533), (418, 45521), (539, 35302), (929, 20482), (931, 20438), (1078, 17651), (1463, 13006), (1858, 10241), (1862, 10219), (2926, 6503)]