21177818

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{32783}}^1$

素因数の和:32821

約数の個数: 16

約数和(自身を含む): 35406720

約数和(自身を除く): 14228902

約数列:

[1, 2, 17, 19, 34, 38, 323, 646, 32783, 65566, 557311, 622877, 1114622, 1245754, 10588909, 21177818]

約数ペア:

[(1, 21177818), (2, 10588909), (17, 1245754), (19, 1114622), (34, 622877), (38, 557311), (323, 65566), (646, 32783)]