21170090

素因数分解:

$2^1\times 5^1\times {\mathrm{1451}}^1\times {\mathrm{1459}}^1$

素因数の和:2917

約数の個数: 16

約数和(自身を含む): 38158560

約数和(自身を除く): 16988470

約数列:

[1, 2, 5, 10, 1451, 1459, 2902, 2918, 7255, 7295, 14510, 14590, 2117009, 4234018, 10585045, 21170090]

約数ペア:

[(1, 21170090), (2, 10585045), (5, 4234018), (10, 2117009), (1451, 14590), (1459, 14510), (2902, 7295), (2918, 7255)]