20402478

素因数分解:

$2^1\times 3^2\times {\mathrm{73}}^1\times {\mathrm{15527}}^1$

素因数の和:15608

約数の個数: 24

約数和(自身を含む): 44813808

約数和(自身を除く): 24411330

約数列:

[1, 2, 3, 6, 9, 18, 73, 146, 219, 438, 657, 1314, 15527, 31054, 46581, 93162, 139743, 279486, 1133471, 2266942, 3400413, 6800826, 10201239, 20402478]

約数ペア:

[(1, 20402478), (2, 10201239), (3, 6800826), (6, 3400413), (9, 2266942), (18, 1133471), (73, 279486), (146, 139743), (219, 93162), (438, 46581), (657, 31054), (1314, 15527)]