18731916

素因数分解:

$2^2\times 3^2\times 7^3\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:109

約数の個数: 144

約数和(自身を含む): 58094400

約数和(自身を除く): 39362484

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 37, 41, 42, 49, 63, 74, 82, 84, 98, 111, 123, 126, 147, 148, 164, 196, 222, 246, 252, 259, 287, 294, 333, 343, 369, 441, 444, 492, 518, 574, 588, 666, 686, 738, 777, 861, 882, 1029, 1036, 1148, 1332, 1372, 1476, 1517, 1554, 1722, 1764, 1813, 2009, 2058, 2331, 2583, 3034, 3087, 3108, 3444, 3626, 4018, 4116, 4551, 4662, 5166, 5439, 6027, 6068, 6174, 7252, 8036, 9102, 9324, 10332, 10619, 10878, 12054, 12348, 12691, 13653, 14063, 16317, 18081, 18204, 21238, 21756, 24108, 25382, 27306, 28126, 31857, 32634, 36162, 38073, 42189, 42476, 50764, 54612, 56252, 63714, 65268, 72324, 74333, 76146, 84378, 95571, 114219, 126567, 127428, 148666, 152292, 168756, 191142, 222999, 228438, 253134, 297332, 382284, 445998, 456876, 506268, 520331, 668997, 891996, 1040662, 1337994, 1560993, 2081324, 2675988, 3121986, 4682979, 6243972, 9365958, 18731916]

約数ペア:

[(1, 18731916), (2, 9365958), (3, 6243972), (4, 4682979), (6, 3121986), (7, 2675988), (9, 2081324), (12, 1560993), (14, 1337994), (18, 1040662), (21, 891996), (28, 668997), (36, 520331), (37, 506268), (41, 456876), (42, 445998), (49, 382284), (63, 297332), (74, 253134), (82, 228438), (84, 222999), (98, 191142), (111, 168756), (123, 152292), (126, 148666), (147, 127428), (148, 126567), (164, 114219), (196, 95571), (222, 84378), (246, 76146), (252, 74333), (259, 72324), (287, 65268), (294, 63714), (333, 56252), (343, 54612), (369, 50764), (441, 42476), (444, 42189), (492, 38073), (518, 36162), (574, 32634), (588, 31857), (666, 28126), (686, 27306), (738, 25382), (777, 24108), (861, 21756), (882, 21238), (1029, 18204), (1036, 18081), (1148, 16317), (1332, 14063), (1372, 13653), (1476, 12691), (1517, 12348), (1554, 12054), (1722, 10878), (1764, 10619), (1813, 10332), (2009, 9324), (2058, 9102), (2331, 8036), (2583, 7252), (3034, 6174), (3087, 6068), (3108, 6027), (3444, 5439), (3626, 5166), (4018, 4662), (4116, 4551)]