18885438

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:95

約数の個数: 144

約数和(自身を含む): 52284960

約数和(自身を除く): 33399522

約数列:

[1, 2, 3, 6, 9, 11, 13, 18, 22, 23, 26, 29, 33, 39, 46, 58, 66, 69, 78, 87, 99, 117, 121, 138, 143, 174, 198, 207, 234, 242, 253, 261, 286, 299, 319, 363, 377, 414, 429, 506, 522, 598, 638, 667, 726, 754, 759, 858, 897, 957, 1089, 1131, 1287, 1334, 1518, 1573, 1794, 1914, 2001, 2178, 2262, 2277, 2574, 2691, 2783, 2871, 3146, 3289, 3393, 3509, 4002, 4147, 4554, 4719, 5382, 5566, 5742, 6003, 6578, 6786, 7018, 7337, 8294, 8349, 8671, 9438, 9867, 10527, 12006, 12441, 14157, 14674, 16698, 17342, 19734, 21054, 22011, 24882, 25047, 26013, 28314, 29601, 31581, 36179, 37323, 44022, 45617, 50094, 52026, 59202, 63162, 66033, 72358, 74646, 78039, 80707, 91234, 95381, 108537, 132066, 136851, 156078, 161414, 190762, 217074, 242121, 273702, 286143, 325611, 410553, 484242, 572286, 651222, 726363, 821106, 858429, 1049191, 1452726, 1716858, 2098382, 3147573, 6295146, 9442719, 18885438]

約数ペア:

[(1, 18885438), (2, 9442719), (3, 6295146), (6, 3147573), (9, 2098382), (11, 1716858), (13, 1452726), (18, 1049191), (22, 858429), (23, 821106), (26, 726363), (29, 651222), (33, 572286), (39, 484242), (46, 410553), (58, 325611), (66, 286143), (69, 273702), (78, 242121), (87, 217074), (99, 190762), (117, 161414), (121, 156078), (138, 136851), (143, 132066), (174, 108537), (198, 95381), (207, 91234), (234, 80707), (242, 78039), (253, 74646), (261, 72358), (286, 66033), (299, 63162), (319, 59202), (363, 52026), (377, 50094), (414, 45617), (429, 44022), (506, 37323), (522, 36179), (598, 31581), (638, 29601), (667, 28314), (726, 26013), (754, 25047), (759, 24882), (858, 22011), (897, 21054), (957, 19734), (1089, 17342), (1131, 16698), (1287, 14674), (1334, 14157), (1518, 12441), (1573, 12006), (1794, 10527), (1914, 9867), (2001, 9438), (2178, 8671), (2262, 8349), (2277, 8294), (2574, 7337), (2691, 7018), (2783, 6786), (2871, 6578), (3146, 6003), (3289, 5742), (3393, 5566), (3509, 5382), (4002, 4719), (4147, 4554)]