21098672

素因数分解:

$2^4\times 7^1\times {\mathrm{257}}^1\times {\mathrm{733}}^1$

素因数の和:1005

約数の個数: 40

約数和(自身を含む): 46964256

約数和(自身を除く): 25865584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 257, 514, 733, 1028, 1466, 1799, 2056, 2932, 3598, 4112, 5131, 5864, 7196, 10262, 11728, 14392, 20524, 28784, 41048, 82096, 188381, 376762, 753524, 1318667, 1507048, 2637334, 3014096, 5274668, 10549336, 21098672]

約数ペア:

[(1, 21098672), (2, 10549336), (4, 5274668), (7, 3014096), (8, 2637334), (14, 1507048), (16, 1318667), (28, 753524), (56, 376762), (112, 188381), (257, 82096), (514, 41048), (733, 28784), (1028, 20524), (1466, 14392), (1799, 11728), (2056, 10262), (2932, 7196), (3598, 5864), (4112, 5131)]