19788965

素因数分解:

$5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{4127}}^1$

素因数の和:4276

約数の個数: 16

約数和(自身を含む): 27343872

約数和(自身を除く): 7554907

約数列:

[1, 5, 7, 35, 137, 685, 959, 4127, 4795, 20635, 28889, 144445, 565399, 2826995, 3957793, 19788965]

約数ペア:

[(1, 19788965), (5, 3957793), (7, 2826995), (35, 565399), (137, 144445), (685, 28889), (959, 20635), (4127, 4795)]