21796964

素因数分解:

$2^2\times 7^3\times {\mathrm{15887}}^1$

素因数の和:15912

約数の個数: 24

約数和(自身を含む): 44486400

約数和(自身を除く): 22689436

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 15887, 31774, 63548, 111209, 222418, 444836, 778463, 1556926, 3113852, 5449241, 10898482, 21796964]

約数ペア:

[(1, 21796964), (2, 10898482), (4, 5449241), (7, 3113852), (14, 1556926), (28, 778463), (49, 444836), (98, 222418), (196, 111209), (343, 63548), (686, 31774), (1372, 15887)]