21649664

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{4451}}^1$

素因数の和:4486

約数の個数: 36

約数和(自身を含む): 45499440

約数和(自身を除く): 23849776

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 608, 1216, 2432, 4451, 4864, 8902, 17804, 35608, 71216, 84569, 142432, 169138, 284864, 338276, 569728, 676552, 1139456, 1353104, 2706208, 5412416, 10824832, 21649664]

約数ペア:

[(1, 21649664), (2, 10824832), (4, 5412416), (8, 2706208), (16, 1353104), (19, 1139456), (32, 676552), (38, 569728), (64, 338276), (76, 284864), (128, 169138), (152, 142432), (256, 84569), (304, 71216), (608, 35608), (1216, 17804), (2432, 8902), (4451, 4864)]