18826864

素因数分解:

$2^4\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1571}}^1$

素因数の和:1693

約数の個数: 40

約数和(自身を含む): 42104448

約数和(自身を除く): 23277584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 107, 112, 214, 428, 749, 856, 1498, 1571, 1712, 2996, 3142, 5992, 6284, 10997, 11984, 12568, 21994, 25136, 43988, 87976, 168097, 175952, 336194, 672388, 1176679, 1344776, 2353358, 2689552, 4706716, 9413432, 18826864]

約数ペア:

[(1, 18826864), (2, 9413432), (4, 4706716), (7, 2689552), (8, 2353358), (14, 1344776), (16, 1176679), (28, 672388), (56, 336194), (107, 175952), (112, 168097), (214, 87976), (428, 43988), (749, 25136), (856, 21994), (1498, 12568), (1571, 11984), (1712, 10997), (2996, 6284), (3142, 5992)]