19427445

素因数分解:

$3^4\times 5^1\times {\mathrm{47969}}^1$

素因数の和:47986

約数の個数: 20

約数和(自身を含む): 34826220

約数和(自身を除く): 15398775

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 47969, 143907, 239845, 431721, 719535, 1295163, 2158605, 3885489, 6475815, 19427445]

約数ペア:

[(1, 19427445), (3, 6475815), (5, 3885489), (9, 2158605), (15, 1295163), (27, 719535), (45, 431721), (81, 239845), (135, 143907), (405, 47969)]