21707842

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43943}}^1$

素因数の和:43977

約数の個数: 16

約数和(自身を含む): 36912960

約数和(自身を除く): 15205118

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 43943, 87886, 571259, 834917, 1142518, 1669834, 10853921, 21707842]

約数ペア:

[(1, 21707842), (2, 10853921), (13, 1669834), (19, 1142518), (26, 834917), (38, 571259), (247, 87886), (494, 43943)]