21443584

素因数分解:

$2^{10}\times {\mathrm{43}}^1\times {\mathrm{487}}^1$

素因数の和:550

約数の個数: 44

約数和(自身を含む): 43953184

約数和(自身を除く): 22509600

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 256, 344, 487, 512, 688, 974, 1024, 1376, 1948, 2752, 3896, 5504, 7792, 11008, 15584, 20941, 22016, 31168, 41882, 44032, 62336, 83764, 124672, 167528, 249344, 335056, 498688, 670112, 1340224, 2680448, 5360896, 10721792, 21443584]

約数ペア:

[(1, 21443584), (2, 10721792), (4, 5360896), (8, 2680448), (16, 1340224), (32, 670112), (43, 498688), (64, 335056), (86, 249344), (128, 167528), (172, 124672), (256, 83764), (344, 62336), (487, 44032), (512, 41882), (688, 31168), (974, 22016), (1024, 20941), (1376, 15584), (1948, 11008), (2752, 7792), (3896, 5504)]