21789488

素因数分解:

$2^4\times 7^1\times {\mathrm{257}}^1\times {\mathrm{757}}^1$

素因数の和:1029

約数の個数: 40

約数和(自身を含む): 48499872

約数和(自身を除く): 26710384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 257, 514, 757, 1028, 1514, 1799, 2056, 3028, 3598, 4112, 5299, 6056, 7196, 10598, 12112, 14392, 21196, 28784, 42392, 84784, 194549, 389098, 778196, 1361843, 1556392, 2723686, 3112784, 5447372, 10894744, 21789488]

約数ペア:

[(1, 21789488), (2, 10894744), (4, 5447372), (7, 3112784), (8, 2723686), (14, 1556392), (16, 1361843), (28, 778196), (56, 389098), (112, 194549), (257, 84784), (514, 42392), (757, 28784), (1028, 21196), (1514, 14392), (1799, 12112), (2056, 10598), (3028, 7196), (3598, 6056), (4112, 5299)]