20210739987

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{557}}^1\times {\mathrm{281279}}^1$

素因数の和:281882

約数の個数: 16

約数和(自身を含む): 27623946240

約数和(自身を除く): 7413206253

約数列:

[1, 3, 43, 129, 557, 1671, 23951, 71853, 281279, 843837, 12094997, 36284991, 156672403, 470017209, 6736913329, 20210739987]

約数ペア:

[(1, 20210739987), (3, 6736913329), (43, 470017209), (129, 156672403), (557, 36284991), (1671, 12094997), (23951, 843837), (71853, 281279)]