21742004

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{6653}}^1$

素因数の和:6719

約数の個数: 24

約数和(自身を含む): 40988640

約数和(自身を除く): 19246636

約数列:

[1, 2, 4, 19, 38, 43, 76, 86, 172, 817, 1634, 3268, 6653, 13306, 26612, 126407, 252814, 286079, 505628, 572158, 1144316, 5435501, 10871002, 21742004]

約数ペア:

[(1, 21742004), (2, 10871002), (4, 5435501), (19, 1144316), (38, 572158), (43, 505628), (76, 286079), (86, 252814), (172, 126407), (817, 26612), (1634, 13306), (3268, 6653)]