21193160

素因数分解:

$2^3\times 5^1\times {\mathrm{529829}}^1$

素因数の和:529840

約数の個数: 16

約数和(自身を含む): 47684700

約数和(自身を除く): 26491540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 529829, 1059658, 2119316, 2649145, 4238632, 5298290, 10596580, 21193160]

約数ペア:

[(1, 21193160), (2, 10596580), (4, 5298290), (5, 4238632), (8, 2649145), (10, 2119316), (20, 1059658), (40, 529829)]