21348485

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{2543}}^1$

素因数の和:2644

約数の個数: 16

約数和(自身を含む): 27108864

約数和(自身を除く): 5760379

約数列:

[1, 5, 23, 73, 115, 365, 1679, 2543, 8395, 12715, 58489, 185639, 292445, 928195, 4269697, 21348485]

約数ペア:

[(1, 21348485), (5, 4269697), (23, 928195), (73, 292445), (115, 185639), (365, 58489), (1679, 12715), (2543, 8395)]