561645

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{1783}}^1$

素因数の和:1801

約数の個数: 24

約数和(自身を含む): 1113216

約数和(自身を除く): 551571

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 1783, 5349, 8915, 12481, 16047, 26745, 37443, 62405, 80235, 112329, 187215, 561645]

約数ペア:

[(1, 561645), (3, 187215), (5, 112329), (7, 80235), (9, 62405), (15, 37443), (21, 26745), (35, 16047), (45, 12481), (63, 8915), (105, 5349), (315, 1783)]