21442988

素因数分解:

$2^2\times 7^3\times {\mathrm{15629}}^1$

素因数の和:15654

約数の個数: 24

約数和(自身を含む): 43764000

約数和(自身を除く): 22321012

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 15629, 31258, 62516, 109403, 218806, 437612, 765821, 1531642, 3063284, 5360747, 10721494, 21442988]

約数ペア:

[(1, 21442988), (2, 10721494), (4, 5360747), (7, 3063284), (14, 1531642), (28, 765821), (49, 437612), (98, 218806), (196, 109403), (343, 62516), (686, 31258), (1372, 15629)]