21151872

素因数分解:

$2^7\times 3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:131

約数の個数: 192

約数和(自身を含む): 72346560

約数和(自身を除く): 51194688

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 43, 48, 56, 61, 63, 64, 72, 84, 86, 96, 112, 122, 126, 128, 129, 144, 168, 172, 183, 192, 224, 244, 252, 258, 288, 301, 336, 344, 366, 384, 387, 427, 448, 488, 504, 516, 549, 576, 602, 672, 688, 732, 774, 854, 896, 903, 976, 1008, 1032, 1098, 1152, 1204, 1281, 1344, 1376, 1464, 1548, 1708, 1806, 1952, 2016, 2064, 2196, 2408, 2562, 2623, 2688, 2709, 2752, 2928, 3096, 3416, 3612, 3843, 3904, 4032, 4128, 4392, 4816, 5124, 5246, 5418, 5504, 5856, 6192, 6832, 7224, 7686, 7808, 7869, 8064, 8256, 8784, 9632, 10248, 10492, 10836, 11712, 12384, 13664, 14448, 15372, 15738, 16512, 17568, 18361, 19264, 20496, 20984, 21672, 23424, 23607, 24768, 27328, 28896, 30744, 31476, 35136, 36722, 38528, 40992, 41968, 43344, 47214, 49536, 54656, 55083, 57792, 61488, 62952, 70272, 73444, 81984, 83936, 86688, 94428, 110166, 115584, 122976, 125904, 146888, 163968, 165249, 167872, 173376, 188856, 220332, 245952, 251808, 293776, 330498, 335744, 346752, 377712, 440664, 491904, 503616, 587552, 660996, 755424, 881328, 1007232, 1175104, 1321992, 1510848, 1762656, 2350208, 2643984, 3021696, 3525312, 5287968, 7050624, 10575936, 21151872]

約数ペア:

[(1, 21151872), (2, 10575936), (3, 7050624), (4, 5287968), (6, 3525312), (7, 3021696), (8, 2643984), (9, 2350208), (12, 1762656), (14, 1510848), (16, 1321992), (18, 1175104), (21, 1007232), (24, 881328), (28, 755424), (32, 660996), (36, 587552), (42, 503616), (43, 491904), (48, 440664), (56, 377712), (61, 346752), (63, 335744), (64, 330498), (72, 293776), (84, 251808), (86, 245952), (96, 220332), (112, 188856), (122, 173376), (126, 167872), (128, 165249), (129, 163968), (144, 146888), (168, 125904), (172, 122976), (183, 115584), (192, 110166), (224, 94428), (244, 86688), (252, 83936), (258, 81984), (288, 73444), (301, 70272), (336, 62952), (344, 61488), (366, 57792), (384, 55083), (387, 54656), (427, 49536), (448, 47214), (488, 43344), (504, 41968), (516, 40992), (549, 38528), (576, 36722), (602, 35136), (672, 31476), (688, 30744), (732, 28896), (774, 27328), (854, 24768), (896, 23607), (903, 23424), (976, 21672), (1008, 20984), (1032, 20496), (1098, 19264), (1152, 18361), (1204, 17568), (1281, 16512), (1344, 15738), (1376, 15372), (1464, 14448), (1548, 13664), (1708, 12384), (1806, 11712), (1952, 10836), (2016, 10492), (2064, 10248), (2196, 9632), (2408, 8784), (2562, 8256), (2623, 8064), (2688, 7869), (2709, 7808), (2752, 7686), (2928, 7224), (3096, 6832), (3416, 6192), (3612, 5856), (3843, 5504), (3904, 5418), (4032, 5246), (4128, 5124), (4392, 4816)]