18866078

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:118

約数の個数: 72

約数和(自身を含む): 38026296

約数和(自身を除く): 19160218

約数列:

[1, 2, 7, 11, 14, 22, 37, 43, 49, 74, 77, 86, 98, 121, 154, 242, 259, 301, 407, 473, 518, 539, 602, 814, 847, 946, 1078, 1591, 1694, 1813, 2107, 2849, 3182, 3311, 3626, 4214, 4477, 5203, 5698, 5929, 6622, 8954, 10406, 11137, 11858, 17501, 19943, 22274, 23177, 31339, 35002, 36421, 39886, 46354, 62678, 72842, 77959, 122507, 155918, 192511, 219373, 245014, 254947, 385022, 438746, 509894, 857549, 1347577, 1715098, 2695154, 9433039, 18866078]

約数ペア:

[(1, 18866078), (2, 9433039), (7, 2695154), (11, 1715098), (14, 1347577), (22, 857549), (37, 509894), (43, 438746), (49, 385022), (74, 254947), (77, 245014), (86, 219373), (98, 192511), (121, 155918), (154, 122507), (242, 77959), (259, 72842), (301, 62678), (407, 46354), (473, 39886), (518, 36421), (539, 35002), (602, 31339), (814, 23177), (847, 22274), (946, 19943), (1078, 17501), (1591, 11858), (1694, 11137), (1813, 10406), (2107, 8954), (2849, 6622), (3182, 5929), (3311, 5698), (3626, 5203), (4214, 4477)]