21128152

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1433}}^1$

素因数の和:1555

約数の個数: 32

約数和(自身を含む): 42159600

約数和(自身を除く): 21031448

約数列:

[1, 2, 4, 8, 19, 38, 76, 97, 152, 194, 388, 776, 1433, 1843, 2866, 3686, 5732, 7372, 11464, 14744, 27227, 54454, 108908, 139001, 217816, 278002, 556004, 1112008, 2641019, 5282038, 10564076, 21128152]

約数ペア:

[(1, 21128152), (2, 10564076), (4, 5282038), (8, 2641019), (19, 1112008), (38, 556004), (76, 278002), (97, 217816), (152, 139001), (194, 108908), (388, 54454), (776, 27227), (1433, 14744), (1843, 11464), (2866, 7372), (3686, 5732)]