21489664

素因数分解:

$2^{11}\times 7^1\times {\mathrm{1499}}^1$

素因数の和:1528

約数の個数: 48

約数和(自身を含む): 49140000

約数和(自身を除く): 27650336

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1024, 1499, 1792, 2048, 2998, 3584, 5996, 7168, 10493, 11992, 14336, 20986, 23984, 41972, 47968, 83944, 95936, 167888, 191872, 335776, 383744, 671552, 767488, 1343104, 1534976, 2686208, 3069952, 5372416, 10744832, 21489664]

約数ペア:

[(1, 21489664), (2, 10744832), (4, 5372416), (7, 3069952), (8, 2686208), (14, 1534976), (16, 1343104), (28, 767488), (32, 671552), (56, 383744), (64, 335776), (112, 191872), (128, 167888), (224, 95936), (256, 83944), (448, 47968), (512, 41972), (896, 23984), (1024, 20986), (1499, 14336), (1792, 11992), (2048, 10493), (2998, 7168), (3584, 5996)]