20908208

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{68777}}^1$

素因数の和:68804

約数の個数: 20

約数和(自身を含む): 42642360

約数和(自身を除く): 21734152

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 68777, 137554, 275108, 550216, 1100432, 1306763, 2613526, 5227052, 10454104, 20908208]

約数ペア:

[(1, 20908208), (2, 10454104), (4, 5227052), (8, 2613526), (16, 1306763), (19, 1100432), (38, 550216), (76, 275108), (152, 137554), (304, 68777)]