81561165

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{829}}^1\times {\mathrm{937}}^1$

素因数の和:1781

約数の個数: 32

約数和(自身を含む): 149479680

約数和(自身を除く): 67918515

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 829, 937, 2487, 2811, 4145, 4685, 5803, 6559, 12435, 14055, 17409, 19677, 29015, 32795, 87045, 98385, 776773, 2330319, 3883865, 5437411, 11651595, 16312233, 27187055, 81561165]

約数ペア:

[(1, 81561165), (3, 27187055), (5, 16312233), (7, 11651595), (15, 5437411), (21, 3883865), (35, 2330319), (105, 776773), (829, 98385), (937, 87045), (2487, 32795), (2811, 29015), (4145, 19677), (4685, 17409), (5803, 14055), (6559, 12435)]