21139998728

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{887}}^1\times {\mathrm{156797}}^1$

素因数の和:157709

約数の個数: 32

約数和(自身を含む): 41770987200

約数和(自身を除く): 20630988472

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 887, 1774, 3548, 7096, 16853, 33706, 67412, 134824, 156797, 313594, 627188, 1254376, 2979143, 5958286, 11916572, 23833144, 139078939, 278157878, 556315756, 1112631512, 2642499841, 5284999682, 10569999364, 21139998728]

約数ペア:

[(1, 21139998728), (2, 10569999364), (4, 5284999682), (8, 2642499841), (19, 1112631512), (38, 556315756), (76, 278157878), (152, 139078939), (887, 23833144), (1774, 11916572), (3548, 5958286), (7096, 2979143), (16853, 1254376), (33706, 627188), (67412, 313594), (134824, 156797)]