19999386

素因数分解:

$2^1\times 3^6\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:103

約数の個数: 112

約数和(自身を含む): 51939360

約数和(自身を除く): 31939974

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 29, 33, 43, 54, 58, 66, 81, 86, 87, 99, 129, 162, 174, 198, 243, 258, 261, 297, 319, 387, 473, 486, 522, 594, 638, 729, 774, 783, 891, 946, 957, 1161, 1247, 1419, 1458, 1566, 1782, 1914, 2322, 2349, 2494, 2673, 2838, 2871, 3483, 3741, 4257, 4698, 5346, 5742, 6966, 7047, 7482, 8019, 8514, 8613, 10449, 11223, 12771, 13717, 14094, 16038, 17226, 20898, 21141, 22446, 25542, 25839, 27434, 31347, 33669, 38313, 41151, 42282, 51678, 62694, 67338, 76626, 77517, 82302, 101007, 114939, 123453, 155034, 202014, 229878, 232551, 246906, 303021, 344817, 370359, 465102, 606042, 689634, 740718, 909063, 1111077, 1818126, 2222154, 3333231, 6666462, 9999693, 19999386]

約数ペア:

[(1, 19999386), (2, 9999693), (3, 6666462), (6, 3333231), (9, 2222154), (11, 1818126), (18, 1111077), (22, 909063), (27, 740718), (29, 689634), (33, 606042), (43, 465102), (54, 370359), (58, 344817), (66, 303021), (81, 246906), (86, 232551), (87, 229878), (99, 202014), (129, 155034), (162, 123453), (174, 114939), (198, 101007), (243, 82302), (258, 77517), (261, 76626), (297, 67338), (319, 62694), (387, 51678), (473, 42282), (486, 41151), (522, 38313), (594, 33669), (638, 31347), (729, 27434), (774, 25839), (783, 25542), (891, 22446), (946, 21141), (957, 20898), (1161, 17226), (1247, 16038), (1419, 14094), (1458, 13717), (1566, 12771), (1782, 11223), (1914, 10449), (2322, 8613), (2349, 8514), (2494, 8019), (2673, 7482), (2838, 7047), (2871, 6966), (3483, 5742), (3741, 5346), (4257, 4698)]