204051645

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{647783}}^1$

素因数の和:647801

約数の個数: 24

約数和(自身を含む): 404217216

約数和(自身を除く): 200165571

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 647783, 1943349, 3238915, 4534481, 5830047, 9716745, 13603443, 22672405, 29150235, 40810329, 68017215, 204051645]

約数ペア:

[(1, 204051645), (3, 68017215), (5, 40810329), (7, 29150235), (9, 22672405), (15, 13603443), (21, 9716745), (35, 5830047), (45, 4534481), (63, 3238915), (105, 1943349), (315, 647783)]