20421632

素因数分解:

$2^{10}\times 7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1$

素因数の和:82

約数の個数: 132

約数和(自身を含む): 53205624

約数和(自身を除く): 32783992

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 37, 44, 49, 56, 64, 74, 77, 88, 98, 112, 128, 148, 154, 176, 196, 224, 256, 259, 296, 308, 352, 392, 407, 448, 512, 518, 539, 592, 616, 704, 784, 814, 896, 1024, 1036, 1078, 1184, 1232, 1408, 1568, 1628, 1792, 1813, 2072, 2156, 2368, 2464, 2816, 2849, 3136, 3256, 3584, 3626, 4144, 4312, 4736, 4928, 5632, 5698, 6272, 6512, 7168, 7252, 8288, 8624, 9472, 9856, 11264, 11396, 12544, 13024, 14504, 16576, 17248, 18944, 19712, 19943, 22792, 25088, 26048, 29008, 33152, 34496, 37888, 39424, 39886, 45584, 50176, 52096, 58016, 66304, 68992, 78848, 79772, 91168, 104192, 116032, 132608, 137984, 159544, 182336, 208384, 232064, 265216, 275968, 319088, 364672, 416768, 464128, 551936, 638176, 729344, 928256, 1276352, 1458688, 1856512, 2552704, 2917376, 5105408, 10210816, 20421632]

約数ペア:

[(1, 20421632), (2, 10210816), (4, 5105408), (7, 2917376), (8, 2552704), (11, 1856512), (14, 1458688), (16, 1276352), (22, 928256), (28, 729344), (32, 638176), (37, 551936), (44, 464128), (49, 416768), (56, 364672), (64, 319088), (74, 275968), (77, 265216), (88, 232064), (98, 208384), (112, 182336), (128, 159544), (148, 137984), (154, 132608), (176, 116032), (196, 104192), (224, 91168), (256, 79772), (259, 78848), (296, 68992), (308, 66304), (352, 58016), (392, 52096), (407, 50176), (448, 45584), (512, 39886), (518, 39424), (539, 37888), (592, 34496), (616, 33152), (704, 29008), (784, 26048), (814, 25088), (896, 22792), (1024, 19943), (1036, 19712), (1078, 18944), (1184, 17248), (1232, 16576), (1408, 14504), (1568, 13024), (1628, 12544), (1792, 11396), (1813, 11264), (2072, 9856), (2156, 9472), (2368, 8624), (2464, 8288), (2816, 7252), (2849, 7168), (3136, 6512), (3256, 6272), (3584, 5698), (3626, 5632), (4144, 4928), (4312, 4736)]