19940215

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{487}}^1$

素因数の和:942

約数の個数: 16

約数和(自身を含む): 25297920

約数和(自身を除く): 5357705

約数列:

[1, 5, 19, 95, 431, 487, 2155, 2435, 8189, 9253, 40945, 46265, 209897, 1049485, 3988043, 19940215]

約数ペア:

[(1, 19940215), (5, 3988043), (19, 1049485), (95, 209897), (431, 46265), (487, 40945), (2155, 9253), (2435, 8189)]