21151262

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{15761}}^1$

素因数の和:15835

約数の個数: 16

約数和(自身を含む): 35180784

約数和(自身を除く): 14029522

約数列:

[1, 2, 11, 22, 61, 122, 671, 1342, 15761, 31522, 173371, 346742, 961421, 1922842, 10575631, 21151262]

約数ペア:

[(1, 21151262), (2, 10575631), (11, 1922842), (22, 961421), (61, 346742), (122, 173371), (671, 31522), (1342, 15761)]