21339794

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{12809}}^1$

素因数の和:12842

約数の個数: 24

約数和(自身を含む): 39429180

約数和(自身を除く): 18089386

約数列:

[1, 2, 7, 14, 17, 34, 49, 98, 119, 238, 833, 1666, 12809, 25618, 89663, 179326, 217753, 435506, 627641, 1255282, 1524271, 3048542, 10669897, 21339794]

約数ペア:

[(1, 21339794), (2, 10669897), (7, 3048542), (14, 1524271), (17, 1255282), (34, 627641), (49, 435506), (98, 217753), (119, 179326), (238, 89663), (833, 25618), (1666, 12809)]