209519359

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1\times {\mathrm{2917}}^1$

素因数の和:3286

約数の個数: 16

約数和(自身を含む): 248006656

約数和(自身を除く): 38487297

約数列:

[1, 7, 31, 217, 331, 2317, 2917, 10261, 20419, 71827, 90427, 632989, 965527, 6758689, 29931337, 209519359]

約数ペア:

[(1, 209519359), (7, 29931337), (31, 6758689), (217, 965527), (331, 632989), (2317, 90427), (2917, 71827), (10261, 20419)]