18911878

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{479}}^1\times {\mathrm{1039}}^1$

素因数の和:1539

約数の個数: 16

約数和(自身を含む): 29952000

約数和(自身を除く): 11040122

約数列:

[1, 2, 19, 38, 479, 958, 1039, 2078, 9101, 18202, 19741, 39482, 497681, 995362, 9455939, 18911878]

約数ペア:

[(1, 18911878), (2, 9455939), (19, 995362), (38, 497681), (479, 39482), (958, 19741), (1039, 18202), (2078, 9101)]