19076981

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{223}}^1$

素因数の和:353

約数の個数: 24

約数和(自身を含む): 24310272

約数和(自身を除く): 5233291

約数列:

[1, 7, 11, 77, 101, 121, 223, 707, 847, 1111, 1561, 2453, 7777, 12221, 17171, 22523, 26983, 85547, 157661, 188881, 247753, 1734271, 2725283, 19076981]

約数ペア:

[(1, 19076981), (7, 2725283), (11, 1734271), (77, 247753), (101, 188881), (121, 157661), (223, 85547), (707, 26983), (847, 22523), (1111, 17171), (1561, 12221), (2453, 7777)]