17978945

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{4919}}^1$

素因数の和:4984

約数の個数: 16

約数和(自身を含む): 23379840

約数和(自身を除く): 5400895

約数列:

[1, 5, 17, 43, 85, 215, 731, 3655, 4919, 24595, 83623, 211517, 418115, 1057585, 3595789, 17978945]

約数ペア:

[(1, 17978945), (5, 3595789), (17, 1057585), (43, 418115), (85, 211517), (215, 83623), (731, 24595), (3655, 4919)]