19918813698

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{281}}^1\times {\mathrm{80369}}^1$

素因数の和:80672

約数の個数: 72

約数和(自身を含む): 50382827820

約数和(自身を除く): 30464014122

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 147, 281, 294, 441, 562, 843, 882, 1686, 1967, 2529, 3934, 5058, 5901, 11802, 13769, 17703, 27538, 35406, 41307, 80369, 82614, 123921, 160738, 241107, 247842, 482214, 562583, 723321, 1125166, 1446642, 1687749, 3375498, 3938081, 5063247, 7876162, 10126494, 11814243, 22583689, 23628486, 35442729, 45167378, 67751067, 70885458, 135502134, 158085823, 203253201, 316171646, 406506402, 474257469, 948514938, 1106600761, 1422772407, 2213201522, 2845544814, 3319802283, 6639604566, 9959406849, 19918813698]

約数ペア:

[(1, 19918813698), (2, 9959406849), (3, 6639604566), (6, 3319802283), (7, 2845544814), (9, 2213201522), (14, 1422772407), (18, 1106600761), (21, 948514938), (42, 474257469), (49, 406506402), (63, 316171646), (98, 203253201), (126, 158085823), (147, 135502134), (281, 70885458), (294, 67751067), (441, 45167378), (562, 35442729), (843, 23628486), (882, 22583689), (1686, 11814243), (1967, 10126494), (2529, 7876162), (3934, 5063247), (5058, 3938081), (5901, 3375498), (11802, 1687749), (13769, 1446642), (17703, 1125166), (27538, 723321), (35406, 562583), (41307, 482214), (80369, 247842), (82614, 241107), (123921, 160738)]