280147293

素因数分解:

$3^2\times {\mathrm{107}}^1\times {\mathrm{421}}^1\times {\mathrm{691}}^1$

素因数の和:1225

約数の個数: 24

約数和(自身を含む): 410001696

約数和(自身を除く): 129854403

約数列:

[1, 3, 9, 107, 321, 421, 691, 963, 1263, 2073, 3789, 6219, 45047, 73937, 135141, 221811, 290911, 405423, 665433, 872733, 2618199, 31127477, 93382431, 280147293]

約数ペア:

[(1, 280147293), (3, 93382431), (9, 31127477), (107, 2618199), (321, 872733), (421, 665433), (691, 405423), (963, 290911), (1263, 221811), (2073, 135141), (3789, 73937), (6219, 45047)]