17949988

素因数分解:

$2^2\times 7^1\times {\mathrm{643}}^1\times {\mathrm{997}}^1$

素因数の和:1651

約数の個数: 24

約数和(自身を含む): 35991872

約数和(自身を除く): 18041884

約数列:

[1, 2, 4, 7, 14, 28, 643, 997, 1286, 1994, 2572, 3988, 4501, 6979, 9002, 13958, 18004, 27916, 641071, 1282142, 2564284, 4487497, 8974994, 17949988]

約数ペア:

[(1, 17949988), (2, 8974994), (4, 4487497), (7, 2564284), (14, 1282142), (28, 641071), (643, 27916), (997, 18004), (1286, 13958), (1994, 9002), (2572, 6979), (3988, 4501)]