21305103617

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{738197}}^1$

素因数の和:738261

約数の個数: 24

約数和(自身を含む): 26929463040

約数和(自身を除く): 5624359423

約数列:

[1, 7, 19, 31, 49, 133, 217, 589, 931, 1519, 4123, 28861, 738197, 5167379, 14025743, 22884107, 36171653, 98180201, 160188749, 434798033, 687261407, 1121321243, 3043586231, 21305103617]

約数ペア:

[(1, 21305103617), (7, 3043586231), (19, 1121321243), (31, 687261407), (49, 434798033), (133, 160188749), (217, 98180201), (589, 36171653), (931, 22884107), (1519, 14025743), (4123, 5167379), (28861, 738197)]