12921805

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{10463}}^1$

素因数の和:10500

約数の個数: 16

約数和(自身を含む): 17579520

約数和(自身を除く): 4657715

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 10463, 52315, 136019, 198797, 680095, 993985, 2584361, 12921805]

約数ペア:

[(1, 12921805), (5, 2584361), (13, 993985), (19, 680095), (65, 198797), (95, 136019), (247, 52315), (1235, 10463)]