31801209

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{307}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 48136704

約数和(自身を除く): 16335495

約数列:

[1, 3, 11, 33, 43, 73, 129, 219, 307, 473, 803, 921, 1419, 2409, 3139, 3377, 9417, 10131, 13201, 22411, 34529, 39603, 67233, 103587, 145211, 246521, 435633, 739563, 963673, 2891019, 10600403, 31801209]

約数ペア:

[(1, 31801209), (3, 10600403), (11, 2891019), (33, 963673), (43, 739563), (73, 435633), (129, 246521), (219, 145211), (307, 103587), (473, 67233), (803, 39603), (921, 34529), (1419, 22411), (2409, 13201), (3139, 10131), (3377, 9417)]