20209387

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^3\times {\mathrm{151}}^1$

素因数の和:231

約数の個数: 16

約数和(自身を含む): 23201280

約数和(自身を除く): 2991893

約数列:

[1, 11, 23, 151, 253, 529, 1661, 3473, 5819, 12167, 38203, 79879, 133837, 878669, 1837217, 20209387]

約数ペア:

[(1, 20209387), (11, 1837217), (23, 878669), (151, 133837), (253, 79879), (529, 38203), (1661, 12167), (3473, 5819)]