81967655

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{212903}}^1$

素因数の和:212926

約数の個数: 16

約数和(自身を含む): 122632704

約数和(自身を除く): 40665049

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 212903, 1064515, 1490321, 2341933, 7451605, 11709665, 16393531, 81967655]

約数ペア:

[(1, 81967655), (5, 16393531), (7, 11709665), (11, 7451605), (35, 2341933), (55, 1490321), (77, 1064515), (385, 212903)]