18138978

素因数分解:

$2^1\times 3^7\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1$

素因数の和:76

約数の個数: 128

約数和(自身を含む): 49593600

約数和(自身を除く): 31454622

約数列:

[1, 2, 3, 6, 9, 11, 13, 18, 22, 26, 27, 29, 33, 39, 54, 58, 66, 78, 81, 87, 99, 117, 143, 162, 174, 198, 234, 243, 261, 286, 297, 319, 351, 377, 429, 486, 522, 594, 638, 702, 729, 754, 783, 858, 891, 957, 1053, 1131, 1287, 1458, 1566, 1782, 1914, 2106, 2187, 2262, 2349, 2574, 2673, 2871, 3159, 3393, 3861, 4147, 4374, 4698, 5346, 5742, 6318, 6786, 7047, 7722, 8019, 8294, 8613, 9477, 10179, 11583, 12441, 14094, 16038, 17226, 18954, 20358, 21141, 23166, 24057, 24882, 25839, 28431, 30537, 34749, 37323, 42282, 48114, 51678, 56862, 61074, 63423, 69498, 74646, 77517, 91611, 104247, 111969, 126846, 155034, 183222, 208494, 223938, 232551, 274833, 312741, 335907, 465102, 549666, 625482, 671814, 697653, 824499, 1007721, 1395306, 1648998, 2015442, 3023163, 6046326, 9069489, 18138978]

約数ペア:

[(1, 18138978), (2, 9069489), (3, 6046326), (6, 3023163), (9, 2015442), (11, 1648998), (13, 1395306), (18, 1007721), (22, 824499), (26, 697653), (27, 671814), (29, 625482), (33, 549666), (39, 465102), (54, 335907), (58, 312741), (66, 274833), (78, 232551), (81, 223938), (87, 208494), (99, 183222), (117, 155034), (143, 126846), (162, 111969), (174, 104247), (198, 91611), (234, 77517), (243, 74646), (261, 69498), (286, 63423), (297, 61074), (319, 56862), (351, 51678), (377, 48114), (429, 42282), (486, 37323), (522, 34749), (594, 30537), (638, 28431), (702, 25839), (729, 24882), (754, 24057), (783, 23166), (858, 21141), (891, 20358), (957, 18954), (1053, 17226), (1131, 16038), (1287, 14094), (1458, 12441), (1566, 11583), (1782, 10179), (1914, 9477), (2106, 8613), (2187, 8294), (2262, 8019), (2349, 7722), (2574, 7047), (2673, 6786), (2871, 6318), (3159, 5742), (3393, 5346), (3861, 4698), (4147, 4374)]