208614609

素因数分解:

$3^4\times 7^2\times {\mathrm{52561}}^1$

素因数の和:52587

約数の個数: 30

約数和(自身を含む): 362520114

約数和(自身を除く): 153905505

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 52561, 157683, 367927, 473049, 1103781, 1419147, 2575489, 3311343, 4257441, 7726467, 9934029, 23179401, 29802087, 69538203, 208614609]

約数ペア:

[(1, 208614609), (3, 69538203), (7, 29802087), (9, 23179401), (21, 9934029), (27, 7726467), (49, 4257441), (63, 3311343), (81, 2575489), (147, 1419147), (189, 1103781), (441, 473049), (567, 367927), (1323, 157683), (3969, 52561)]