20885864

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{313}}^1\times {\mathrm{439}}^1$

素因数の和:777

約数の個数: 32

約数和(自身を含む): 41448000

約数和(自身を除く): 20562136

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 313, 439, 626, 878, 1252, 1756, 2504, 3512, 5947, 8341, 11894, 16682, 23788, 33364, 47576, 66728, 137407, 274814, 549628, 1099256, 2610733, 5221466, 10442932, 20885864]

約数ペア:

[(1, 20885864), (2, 10442932), (4, 5221466), (8, 2610733), (19, 1099256), (38, 549628), (76, 274814), (152, 137407), (313, 66728), (439, 47576), (626, 33364), (878, 23788), (1252, 16682), (1756, 11894), (2504, 8341), (3512, 5947)]