20491341

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{997}}^1$

素因数の和:1061

約数の個数: 32

約数和(自身を含む): 32191488

約数和(自身を除く): 11700147

約数列:

[1, 3, 13, 17, 31, 39, 51, 93, 221, 403, 527, 663, 997, 1209, 1581, 2991, 6851, 12961, 16949, 20553, 30907, 38883, 50847, 92721, 220337, 401791, 525419, 661011, 1205373, 1576257, 6830447, 20491341]

約数ペア:

[(1, 20491341), (3, 6830447), (13, 1576257), (17, 1205373), (31, 661011), (39, 525419), (51, 401791), (93, 220337), (221, 92721), (403, 50847), (527, 38883), (663, 30907), (997, 20553), (1209, 16949), (1581, 12961), (2991, 6851)]