20380311

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{5483}}^1$

素因数の和:5555

約数の個数: 24

約数和(自身を含む): 34220160

約数和(自身を除く): 13839849

約数列:

[1, 3, 7, 9, 21, 59, 63, 177, 413, 531, 1239, 3717, 5483, 16449, 38381, 49347, 115143, 323497, 345429, 970491, 2264479, 2911473, 6793437, 20380311]

約数ペア:

[(1, 20380311), (3, 6793437), (7, 2911473), (9, 2264479), (21, 970491), (59, 345429), (63, 323497), (177, 115143), (413, 49347), (531, 38381), (1239, 16449), (3717, 5483)]