20109565

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{9419}}^1$

素因数の和:9492

約数の個数: 16

約数和(自身を含む): 28033920

約数和(自身を除く): 7924355

約数列:

[1, 5, 7, 35, 61, 305, 427, 2135, 9419, 47095, 65933, 329665, 574559, 2872795, 4021913, 20109565]

約数ペア:

[(1, 20109565), (5, 4021913), (7, 2872795), (35, 574559), (61, 329665), (305, 65933), (427, 47095), (2135, 9419)]