21029245

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{1709}}^1$

素因数の和:1844

約数の個数: 16

約数和(自身を含む): 26593920

約数和(自身を除く): 5564675

約数列:

[1, 5, 23, 107, 115, 535, 1709, 2461, 8545, 12305, 39307, 182863, 196535, 914315, 4205849, 21029245]

約数ペア:

[(1, 21029245), (5, 4205849), (23, 914315), (107, 196535), (115, 182863), (535, 39307), (1709, 12305), (2461, 8545)]