399172605

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2047039}}^1$

素因数の和:2047060

約数の個数: 16

約数和(自身を含む): 687805440

約数和(自身を除く): 288632835

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 2047039, 6141117, 10235195, 26611507, 30705585, 79834521, 133057535, 399172605]

約数ペア:

[(1, 399172605), (3, 133057535), (5, 79834521), (13, 30705585), (15, 26611507), (39, 10235195), (65, 6141117), (195, 2047039)]