2118825

素因数分解:

$3^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:135

約数の個数: 48

約数和(自身を含む): 4037440

約数和(自身を除く): 1918615

約数列:

[1, 3, 5, 9, 15, 25, 27, 43, 45, 73, 75, 129, 135, 215, 219, 225, 365, 387, 645, 657, 675, 1075, 1095, 1161, 1825, 1935, 1971, 3139, 3225, 3285, 5475, 5805, 9417, 9675, 9855, 15695, 16425, 28251, 29025, 47085, 49275, 78475, 84753, 141255, 235425, 423765, 706275, 2118825]

約数ペア:

[(1, 2118825), (3, 706275), (5, 423765), (9, 235425), (15, 141255), (25, 84753), (27, 78475), (43, 49275), (45, 47085), (73, 29025), (75, 28251), (129, 16425), (135, 15695), (215, 9855), (219, 9675), (225, 9417), (365, 5805), (387, 5475), (645, 3285), (657, 3225), (675, 3139), (1075, 1971), (1095, 1935), (1161, 1825)]