2661561

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{509}}^1$

素因数の和:605

約数の個数: 24

約数和(自身を含む): 4455360

約数和(自身を除く): 1793799

約数列:

[1, 3, 7, 9, 21, 63, 83, 249, 509, 581, 747, 1527, 1743, 3563, 4581, 5229, 10689, 32067, 42247, 126741, 295729, 380223, 887187, 2661561]

約数ペア:

[(1, 2661561), (3, 887187), (7, 380223), (9, 295729), (21, 126741), (63, 42247), (83, 32067), (249, 10689), (509, 5229), (581, 4581), (747, 3563), (1527, 1743)]