20123681989

素因数分解:

${\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{509}}^1\times {\mathrm{20161}}^1$

素因数の和:20760

約数の個数: 16

約数和(自身を含む): 21099936240

約数和(自身を除く): 976254251

約数列:

[1, 37, 53, 509, 1961, 18833, 20161, 26977, 745957, 998149, 1068533, 10261949, 39535721, 379692113, 543883297, 20123681989]

約数ペア:

[(1, 20123681989), (37, 543883297), (53, 379692113), (509, 39535721), (1961, 10261949), (18833, 1068533), (20161, 998149), (26977, 745957)]