20271988

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{3517}}^1$

素因数の和:3663

約数の個数: 24

約数和(自身を含む): 39007584

約数和(自身を除く): 18735596

約数列:

[1, 2, 4, 11, 22, 44, 131, 262, 524, 1441, 2882, 3517, 5764, 7034, 14068, 38687, 77374, 154748, 460727, 921454, 1842908, 5067997, 10135994, 20271988]

約数ペア:

[(1, 20271988), (2, 10135994), (4, 5067997), (11, 1842908), (22, 921454), (44, 460727), (131, 154748), (262, 77374), (524, 38687), (1441, 14068), (2882, 7034), (3517, 5764)]