21297795

素因数分解:

$3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{9403}}^1$

素因数の和:9562

約数の個数: 16

約数和(自身を含む): 34305792

約数和(自身を除く): 13007997

約数列:

[1, 3, 5, 15, 151, 453, 755, 2265, 9403, 28209, 47015, 141045, 1419853, 4259559, 7099265, 21297795]

約数ペア:

[(1, 21297795), (3, 7099265), (5, 4259559), (15, 1419853), (151, 141045), (453, 47015), (755, 28209), (2265, 9403)]