21561344

素因数分解:

$2^{16}\times 7^1\times {\mathrm{47}}^1$

素因数の和:86

約数の個数: 68

約数和(自身を含む): 50331264

約数和(自身を除く): 28769920

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 56, 64, 94, 112, 128, 188, 224, 256, 329, 376, 448, 512, 658, 752, 896, 1024, 1316, 1504, 1792, 2048, 2632, 3008, 3584, 4096, 5264, 6016, 7168, 8192, 10528, 12032, 14336, 16384, 21056, 24064, 28672, 32768, 42112, 48128, 57344, 65536, 84224, 96256, 114688, 168448, 192512, 229376, 336896, 385024, 458752, 673792, 770048, 1347584, 1540096, 2695168, 3080192, 5390336, 10780672, 21561344]

約数ペア:

[(1, 21561344), (2, 10780672), (4, 5390336), (7, 3080192), (8, 2695168), (14, 1540096), (16, 1347584), (28, 770048), (32, 673792), (47, 458752), (56, 385024), (64, 336896), (94, 229376), (112, 192512), (128, 168448), (188, 114688), (224, 96256), (256, 84224), (329, 65536), (376, 57344), (448, 48128), (512, 42112), (658, 32768), (752, 28672), (896, 24064), (1024, 21056), (1316, 16384), (1504, 14336), (1792, 12032), (2048, 10528), (2632, 8192), (3008, 7168), (3584, 6016), (4096, 5264)]