19908385

素因数分解:

$5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{3623}}^1$

素因数の和:3792

約数の個数: 16

約数和(自身を含む): 27484416

約数和(自身を除く): 7576031

約数列:

[1, 5, 7, 35, 157, 785, 1099, 3623, 5495, 18115, 25361, 126805, 568811, 2844055, 3981677, 19908385]

約数ペア:

[(1, 19908385), (5, 3981677), (7, 2844055), (35, 568811), (157, 126805), (785, 25361), (1099, 18115), (3623, 5495)]