19958995

素因数分解:

$5^1\times 7^1\times {\mathrm{461}}^1\times {\mathrm{1237}}^1$

素因数の和:1710

約数の個数: 16

約数和(自身を含む): 27453888

約数和(自身を除く): 7494893

約数列:

[1, 5, 7, 35, 461, 1237, 2305, 3227, 6185, 8659, 16135, 43295, 570257, 2851285, 3991799, 19958995]

約数ペア:

[(1, 19958995), (5, 3991799), (7, 2851285), (35, 570257), (461, 43295), (1237, 16135), (2305, 8659), (3227, 6185)]