19163216

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1499}}^1$

素因数の和:1571

約数の個数: 40

約数和(自身を含む): 40176000

約数和(自身を除く): 21012784

約数列:

[1, 2, 4, 8, 16, 17, 34, 47, 68, 94, 136, 188, 272, 376, 752, 799, 1499, 1598, 2998, 3196, 5996, 6392, 11992, 12784, 23984, 25483, 50966, 70453, 101932, 140906, 203864, 281812, 407728, 563624, 1127248, 1197701, 2395402, 4790804, 9581608, 19163216]

約数ペア:

[(1, 19163216), (2, 9581608), (4, 4790804), (8, 2395402), (16, 1197701), (17, 1127248), (34, 563624), (47, 407728), (68, 281812), (94, 203864), (136, 140906), (188, 101932), (272, 70453), (376, 50966), (752, 25483), (799, 23984), (1499, 12784), (1598, 11992), (2998, 6392), (3196, 5996)]