20893185

素因数分解:

$3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3389}}^1$

素因数の和:3537

約数の個数: 24

約数和(自身を含む): 36489960

約数和(自身を除く): 15596775

約数列:

[1, 3, 5, 9, 15, 45, 137, 411, 685, 1233, 2055, 3389, 6165, 10167, 16945, 30501, 50835, 152505, 464293, 1392879, 2321465, 4178637, 6964395, 20893185]

約数ペア:

[(1, 20893185), (3, 6964395), (5, 4178637), (9, 2321465), (15, 1392879), (45, 464293), (137, 152505), (411, 50835), (685, 30501), (1233, 16945), (2055, 10167), (3389, 6165)]