217165565

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{1291}}^1\times {\mathrm{1979}}^1$

素因数の和:3292

約数の個数: 16

約数和(自身を含む): 276281280

約数和(自身を除く): 59115715

約数列:

[1, 5, 17, 85, 1291, 1979, 6455, 9895, 21947, 33643, 109735, 168215, 2554889, 12774445, 43433113, 217165565]

約数ペア:

[(1, 217165565), (5, 43433113), (17, 12774445), (85, 2554889), (1291, 168215), (1979, 109735), (6455, 33643), (9895, 21947)]