209895842

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{20753}}^1$

素因数の和:21157

約数の個数: 16

約数和(自身を含む): 339950520

約数和(自身を除く): 130054678

約数列:

[1, 2, 13, 26, 389, 778, 5057, 10114, 20753, 41506, 269789, 539578, 8072917, 16145834, 104947921, 209895842]

約数ペア:

[(1, 209895842), (2, 104947921), (13, 16145834), (26, 8072917), (389, 539578), (778, 269789), (5057, 41506), (10114, 20753)]