20784210915

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1501207}}^1$

素因数の和:1501299

約数の個数: 32

約数和(自身を含む): 36317223936

約数和(自身を除く): 15533013021

約数列:

[1, 3, 5, 13, 15, 39, 65, 71, 195, 213, 355, 923, 1065, 2769, 4615, 13845, 1501207, 4503621, 7506035, 19515691, 22518105, 58547073, 97578455, 106585697, 292735365, 319757091, 532928485, 1385614061, 1598785455, 4156842183, 6928070305, 20784210915]

約数ペア:

[(1, 20784210915), (3, 6928070305), (5, 4156842183), (13, 1598785455), (15, 1385614061), (39, 532928485), (65, 319757091), (71, 292735365), (195, 106585697), (213, 97578455), (355, 58547073), (923, 22518105), (1065, 19515691), (2769, 7506035), (4615, 4503621), (13845, 1501207)]