208345879

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{9749}}^1$

素因数の和:9870

約数の個数: 16

約数和(自身を含む): 247104000

約数和(自身を除く): 38758121

約数列:

[1, 7, 43, 71, 301, 497, 3053, 9749, 21371, 68243, 419207, 692179, 2934449, 4845253, 29763697, 208345879]

約数ペア:

[(1, 208345879), (7, 29763697), (43, 4845253), (71, 2934449), (301, 692179), (497, 419207), (3053, 68243), (9749, 21371)]