2021025839

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{286711}}^1$

素因数の和:286790

約数の個数: 16

約数和(自身を含む): 2477191680

約数和(自身を除く): 456165841

約数列:

[1, 7, 19, 53, 133, 371, 1007, 7049, 286711, 2006977, 5447509, 15195683, 38132563, 106369781, 288717977, 2021025839]

約数ペア:

[(1, 2021025839), (7, 288717977), (19, 106369781), (53, 38132563), (133, 15195683), (371, 5447509), (1007, 2006977), (7049, 286711)]