21511872

素因数分解:

$2^6\times 3^3\times {\mathrm{59}}^1\times {\mathrm{211}}^1$

素因数の和:291

約数の個数: 112

約数和(自身を含む): 64617600

約数和(自身を除く): 43105728

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 59, 64, 72, 96, 108, 118, 144, 177, 192, 211, 216, 236, 288, 354, 422, 432, 472, 531, 576, 633, 708, 844, 864, 944, 1062, 1266, 1416, 1593, 1688, 1728, 1888, 1899, 2124, 2532, 2832, 3186, 3376, 3776, 3798, 4248, 5064, 5664, 5697, 6372, 6752, 7596, 8496, 10128, 11328, 11394, 12449, 12744, 13504, 15192, 16992, 20256, 22788, 24898, 25488, 30384, 33984, 37347, 40512, 45576, 49796, 50976, 60768, 74694, 91152, 99592, 101952, 112041, 121536, 149388, 182304, 199184, 224082, 298776, 336123, 364608, 398368, 448164, 597552, 672246, 796736, 896328, 1195104, 1344492, 1792656, 2390208, 2688984, 3585312, 5377968, 7170624, 10755936, 21511872]

約数ペア:

[(1, 21511872), (2, 10755936), (3, 7170624), (4, 5377968), (6, 3585312), (8, 2688984), (9, 2390208), (12, 1792656), (16, 1344492), (18, 1195104), (24, 896328), (27, 796736), (32, 672246), (36, 597552), (48, 448164), (54, 398368), (59, 364608), (64, 336123), (72, 298776), (96, 224082), (108, 199184), (118, 182304), (144, 149388), (177, 121536), (192, 112041), (211, 101952), (216, 99592), (236, 91152), (288, 74694), (354, 60768), (422, 50976), (432, 49796), (472, 45576), (531, 40512), (576, 37347), (633, 33984), (708, 30384), (844, 25488), (864, 24898), (944, 22788), (1062, 20256), (1266, 16992), (1416, 15192), (1593, 13504), (1688, 12744), (1728, 12449), (1888, 11394), (1899, 11328), (2124, 10128), (2532, 8496), (2832, 7596), (3186, 6752), (3376, 6372), (3776, 5697), (3798, 5664), (4248, 5064)]