19797615

素因数分解:

$3^4\times 5^1\times {\mathrm{48883}}^1$

素因数の和:48900

約数の個数: 20

約数和(自身を含む): 35489784

約数和(自身を除く): 15692169

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 48883, 146649, 244415, 439947, 733245, 1319841, 2199735, 3959523, 6599205, 19797615]

約数ペア:

[(1, 19797615), (3, 6599205), (5, 3959523), (9, 2199735), (15, 1319841), (27, 733245), (45, 439947), (81, 244415), (135, 146649), (405, 48883)]