21703292

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{417371}}^1$

素因数の和:417388

約数の個数: 12

約数和(自身を含む): 40902456

約数和(自身を除く): 19199164

約数列:

[1, 2, 4, 13, 26, 52, 417371, 834742, 1669484, 5425823, 10851646, 21703292]

約数ペア:

[(1, 21703292), (2, 10851646), (4, 5425823), (13, 1669484), (26, 834742), (52, 417371)]