21128471712

素因数分解:

$2^5\times 3^2\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{20441}}^1$

素因数の和:20591

約数の個数: 144

約数和(自身を含む): 62347200552

約数和(自身を除く): 41218728840

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 37, 48, 72, 74, 96, 97, 111, 144, 148, 194, 222, 288, 291, 296, 333, 388, 444, 582, 592, 666, 776, 873, 888, 1164, 1184, 1332, 1552, 1746, 1776, 2328, 2664, 3104, 3492, 3552, 3589, 4656, 5328, 6984, 7178, 9312, 10656, 10767, 13968, 14356, 20441, 21534, 27936, 28712, 32301, 40882, 43068, 57424, 61323, 64602, 81764, 86136, 114848, 122646, 129204, 163528, 172272, 183969, 245292, 258408, 327056, 344544, 367938, 490584, 516816, 654112, 735876, 756317, 981168, 1033632, 1471752, 1512634, 1962336, 1982777, 2268951, 2943504, 3025268, 3965554, 4537902, 5887008, 5948331, 6050536, 6806853, 7931108, 9075804, 11896662, 12101072, 13613706, 15862216, 17844993, 18151608, 23793324, 24202144, 27227412, 31724432, 35689986, 36303216, 47586648, 54454824, 63448864, 71379972, 72606432, 73362749, 95173296, 108909648, 142759944, 146725498, 190346592, 217819296, 220088247, 285519888, 293450996, 440176494, 571039776, 586901992, 660264741, 880352988, 1173803984, 1320529482, 1760705976, 2347607968, 2641058964, 3521411952, 5282117928, 7042823904, 10564235856, 21128471712]

約数ペア:

[(1, 21128471712), (2, 10564235856), (3, 7042823904), (4, 5282117928), (6, 3521411952), (8, 2641058964), (9, 2347607968), (12, 1760705976), (16, 1320529482), (18, 1173803984), (24, 880352988), (32, 660264741), (36, 586901992), (37, 571039776), (48, 440176494), (72, 293450996), (74, 285519888), (96, 220088247), (97, 217819296), (111, 190346592), (144, 146725498), (148, 142759944), (194, 108909648), (222, 95173296), (288, 73362749), (291, 72606432), (296, 71379972), (333, 63448864), (388, 54454824), (444, 47586648), (582, 36303216), (592, 35689986), (666, 31724432), (776, 27227412), (873, 24202144), (888, 23793324), (1164, 18151608), (1184, 17844993), (1332, 15862216), (1552, 13613706), (1746, 12101072), (1776, 11896662), (2328, 9075804), (2664, 7931108), (3104, 6806853), (3492, 6050536), (3552, 5948331), (3589, 5887008), (4656, 4537902), (5328, 3965554), (6984, 3025268), (7178, 2943504), (9312, 2268951), (10656, 1982777), (10767, 1962336), (13968, 1512634), (14356, 1471752), (20441, 1033632), (21534, 981168), (27936, 756317), (28712, 735876), (32301, 654112), (40882, 516816), (43068, 490584), (57424, 367938), (61323, 344544), (64602, 327056), (81764, 258408), (86136, 245292), (114848, 183969), (122646, 172272), (129204, 163528)]