20512991505

素因数分解:

$3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{541}}^1\times {\mathrm{18451}}^1$

素因数の和:19137

約数の個数: 32

約数和(自身を含む): 33123259008

約数和(自身を除く): 12610267503

約数列:

[1, 3, 5, 15, 137, 411, 541, 685, 1623, 2055, 2705, 8115, 18451, 55353, 74117, 92255, 222351, 276765, 370585, 1111755, 2527787, 7583361, 9981991, 12638935, 29945973, 37916805, 49909955, 149729865, 1367532767, 4102598301, 6837663835, 20512991505]

約数ペア:

[(1, 20512991505), (3, 6837663835), (5, 4102598301), (15, 1367532767), (137, 149729865), (411, 49909955), (541, 37916805), (685, 29945973), (1623, 12638935), (2055, 9981991), (2705, 7583361), (8115, 2527787), (18451, 1111755), (55353, 370585), (74117, 276765), (92255, 222351)]