19616247

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{3023}}^1$

素因数の和:3139

約数の個数: 24

約数和(自身を含む): 32707584

約数和(自身を除く): 13091337

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, 3023, 6489, 9069, 21161, 27207, 63483, 190449, 311369, 934107, 2179583, 2802321, 6538749, 19616247]

約数ペア:

[(1, 19616247), (3, 6538749), (7, 2802321), (9, 2179583), (21, 934107), (63, 311369), (103, 190449), (309, 63483), (721, 27207), (927, 21161), (2163, 9069), (3023, 6489)]