20455155

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{64937}}^1$

素因数の和:64955

約数の個数: 24

約数和(自身を含む): 40521312

約数和(自身を除く): 20066157

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 64937, 194811, 324685, 454559, 584433, 974055, 1363677, 2272795, 2922165, 4091031, 6818385, 20455155]

約数ペア:

[(1, 20455155), (3, 6818385), (5, 4091031), (7, 2922165), (9, 2272795), (15, 1363677), (21, 974055), (35, 584433), (45, 454559), (63, 324685), (105, 194811), (315, 64937)]