21005748

素因数分解:

$2^2\times 3^2\times {\mathrm{583493}}^1$

素因数の和:583503

約数の個数: 18

約数和(自身を含む): 53097954

約数和(自身を除く): 32092206

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 583493, 1166986, 1750479, 2333972, 3500958, 5251437, 7001916, 10502874, 21005748]

約数ペア:

[(1, 21005748), (2, 10502874), (3, 7001916), (4, 5251437), (6, 3500958), (9, 2333972), (12, 1750479), (18, 1166986), (36, 583493)]