19687228

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{1741}}^1$

素因数の和:2013

約数の個数: 24

約数和(自身を含む): 37752624

約数和(自身を除く): 18065396

約数列:

[1, 2, 4, 11, 22, 44, 257, 514, 1028, 1741, 2827, 3482, 5654, 6964, 11308, 19151, 38302, 76604, 447437, 894874, 1789748, 4921807, 9843614, 19687228]

約数ペア:

[(1, 19687228), (2, 9843614), (4, 4921807), (11, 1789748), (22, 894874), (44, 447437), (257, 76604), (514, 38302), (1028, 19151), (1741, 11308), (2827, 6964), (3482, 5654)]