8217945

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 15155712

約数和(自身を除く): 6937767

約数列:

[1, 3, 5, 9, 15, 31, 43, 45, 93, 129, 137, 155, 215, 279, 387, 411, 465, 645, 685, 1233, 1333, 1395, 1935, 2055, 3999, 4247, 5891, 6165, 6665, 11997, 12741, 17673, 19995, 21235, 29455, 38223, 53019, 59985, 63705, 88365, 182621, 191115, 265095, 547863, 913105, 1643589, 2739315, 8217945]

約数ペア:

[(1, 8217945), (3, 2739315), (5, 1643589), (9, 913105), (15, 547863), (31, 265095), (43, 191115), (45, 182621), (93, 88365), (129, 63705), (137, 59985), (155, 53019), (215, 38223), (279, 29455), (387, 21235), (411, 19995), (465, 17673), (645, 12741), (685, 11997), (1233, 6665), (1333, 6165), (1395, 5891), (1935, 4247), (2055, 3999)]