131521678

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1\times {\mathrm{2381}}^1$

素因数の和:2843

約数の個数: 16

約数和(自身を含む): 200659680

約数和(自身を除く): 69138002

約数列:

[1, 2, 71, 142, 389, 778, 2381, 4762, 27619, 55238, 169051, 338102, 926209, 1852418, 65760839, 131521678]

約数ペア:

[(1, 131521678), (2, 65760839), (71, 1852418), (142, 926209), (389, 338102), (778, 169051), (2381, 55238), (4762, 27619)]