21007924

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{32621}}^1$

素因数の和:32655

約数の個数: 24

約数和(自身を含む): 43843968

約数和(自身を除く): 22836044

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 32621, 65242, 130484, 228347, 456694, 750283, 913388, 1500566, 3001132, 5251981, 10503962, 21007924]

約数ペア:

[(1, 21007924), (2, 10503962), (4, 5251981), (7, 3001132), (14, 1500566), (23, 913388), (28, 750283), (46, 456694), (92, 228347), (161, 130484), (322, 65242), (644, 32621)]