21282818

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{2237}}^1$

素因数の和:2377

約数の個数: 16

約数和(自身を含む): 32871744

約数和(自身を除く): 11588926

約数列:

[1, 2, 67, 71, 134, 142, 2237, 4474, 4757, 9514, 149879, 158827, 299758, 317654, 10641409, 21282818]

約数ペア:

[(1, 21282818), (2, 10641409), (67, 317654), (71, 299758), (134, 158827), (142, 149879), (2237, 9514), (4474, 4757)]