201719565

素因数分解:

$3^4\times 5^1\times {\mathrm{498073}}^1$

素因数の和:498090

約数の個数: 20

約数和(自身を含む): 361601724

約数和(自身を除く): 159882159

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 498073, 1494219, 2490365, 4482657, 7471095, 13447971, 22413285, 40343913, 67239855, 201719565]

約数ペア:

[(1, 201719565), (3, 67239855), (5, 40343913), (9, 22413285), (15, 13447971), (27, 7471095), (45, 4482657), (81, 2490365), (135, 1494219), (405, 498073)]