20651904

素因数分解:

$2^7\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:237

約数の個数: 192

約数和(自身を含む): 73513440

約数和(自身を除く): 52861536

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 28, 32, 36, 39, 42, 48, 52, 56, 63, 64, 72, 78, 84, 91, 96, 104, 112, 117, 126, 128, 144, 156, 168, 182, 192, 197, 208, 224, 234, 252, 273, 288, 312, 336, 364, 384, 394, 416, 448, 468, 504, 546, 576, 591, 624, 672, 728, 788, 819, 832, 896, 936, 1008, 1092, 1152, 1182, 1248, 1344, 1379, 1456, 1576, 1638, 1664, 1773, 1872, 2016, 2184, 2364, 2496, 2561, 2688, 2758, 2912, 3152, 3276, 3546, 3744, 4032, 4137, 4368, 4728, 4992, 5122, 5516, 5824, 6304, 6552, 7092, 7488, 7683, 8064, 8274, 8736, 9456, 10244, 11032, 11648, 12411, 12608, 13104, 14184, 14976, 15366, 16548, 17472, 17927, 18912, 20488, 22064, 23049, 24822, 25216, 26208, 28368, 30732, 33096, 34944, 35854, 37824, 40976, 44128, 46098, 49644, 52416, 53781, 56736, 61464, 66192, 71708, 75648, 81952, 88256, 92196, 99288, 104832, 107562, 113472, 122928, 132384, 143416, 161343, 163904, 176512, 184392, 198576, 215124, 226944, 245856, 264768, 286832, 322686, 327808, 368784, 397152, 430248, 491712, 529536, 573664, 645372, 737568, 794304, 860496, 983424, 1147328, 1290744, 1475136, 1588608, 1720992, 2294656, 2581488, 2950272, 3441984, 5162976, 6883968, 10325952, 20651904]

約数ペア:

[(1, 20651904), (2, 10325952), (3, 6883968), (4, 5162976), (6, 3441984), (7, 2950272), (8, 2581488), (9, 2294656), (12, 1720992), (13, 1588608), (14, 1475136), (16, 1290744), (18, 1147328), (21, 983424), (24, 860496), (26, 794304), (28, 737568), (32, 645372), (36, 573664), (39, 529536), (42, 491712), (48, 430248), (52, 397152), (56, 368784), (63, 327808), (64, 322686), (72, 286832), (78, 264768), (84, 245856), (91, 226944), (96, 215124), (104, 198576), (112, 184392), (117, 176512), (126, 163904), (128, 161343), (144, 143416), (156, 132384), (168, 122928), (182, 113472), (192, 107562), (197, 104832), (208, 99288), (224, 92196), (234, 88256), (252, 81952), (273, 75648), (288, 71708), (312, 66192), (336, 61464), (364, 56736), (384, 53781), (394, 52416), (416, 49644), (448, 46098), (468, 44128), (504, 40976), (546, 37824), (576, 35854), (591, 34944), (624, 33096), (672, 30732), (728, 28368), (788, 26208), (819, 25216), (832, 24822), (896, 23049), (936, 22064), (1008, 20488), (1092, 18912), (1152, 17927), (1182, 17472), (1248, 16548), (1344, 15366), (1379, 14976), (1456, 14184), (1576, 13104), (1638, 12608), (1664, 12411), (1773, 11648), (1872, 11032), (2016, 10244), (2184, 9456), (2364, 8736), (2496, 8274), (2561, 8064), (2688, 7683), (2758, 7488), (2912, 7092), (3152, 6552), (3276, 6304), (3546, 5824), (3744, 5516), (4032, 5122), (4137, 4992), (4368, 4728)]