21551616

素因数分解:

$2^9\times 3^3\times {\mathrm{1559}}^1$

素因数の和:1586

約数の個数: 80

約数和(自身を含む): 63835200

約数和(自身を除く): 42283584

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 96, 108, 128, 144, 192, 216, 256, 288, 384, 432, 512, 576, 768, 864, 1152, 1536, 1559, 1728, 2304, 3118, 3456, 4608, 4677, 6236, 6912, 9354, 12472, 13824, 14031, 18708, 24944, 28062, 37416, 42093, 49888, 56124, 74832, 84186, 99776, 112248, 149664, 168372, 199552, 224496, 299328, 336744, 399104, 448992, 598656, 673488, 798208, 897984, 1197312, 1346976, 1795968, 2394624, 2693952, 3591936, 5387904, 7183872, 10775808, 21551616]

約数ペア:

[(1, 21551616), (2, 10775808), (3, 7183872), (4, 5387904), (6, 3591936), (8, 2693952), (9, 2394624), (12, 1795968), (16, 1346976), (18, 1197312), (24, 897984), (27, 798208), (32, 673488), (36, 598656), (48, 448992), (54, 399104), (64, 336744), (72, 299328), (96, 224496), (108, 199552), (128, 168372), (144, 149664), (192, 112248), (216, 99776), (256, 84186), (288, 74832), (384, 56124), (432, 49888), (512, 42093), (576, 37416), (768, 28062), (864, 24944), (1152, 18708), (1536, 14031), (1559, 13824), (1728, 12472), (2304, 9354), (3118, 6912), (3456, 6236), (4608, 4677)]