208077399

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{79999}}^1$

素因数の和:80039

約数の個数: 18

約数和(自身を含む): 319280000

約数和(自身を除く): 111202601

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 79999, 239997, 719991, 1359983, 4079949, 12239847, 23119711, 69359133, 208077399]

約数ペア:

[(1, 208077399), (3, 69359133), (9, 23119711), (17, 12239847), (51, 4079949), (153, 1359983), (289, 719991), (867, 239997), (2601, 79999)]