209928568

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{1381109}}^1$

素因数の和:1381134

約数の個数: 16

約数和(自身を含む): 414333000

約数和(自身を除く): 204404432

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 1381109, 2762218, 5524436, 11048872, 26241071, 52482142, 104964284, 209928568]

約数ペア:

[(1, 209928568), (2, 104964284), (4, 52482142), (8, 26241071), (19, 11048872), (38, 5524436), (76, 2762218), (152, 1381109)]