20480943

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{613}}^1$

素因数の和:703

約数の個数: 32

約数和(自身を含む): 32851456

約数和(自身を除く): 12370513

約数列:

[1, 3, 7, 21, 37, 43, 111, 129, 259, 301, 613, 777, 903, 1591, 1839, 4291, 4773, 11137, 12873, 22681, 26359, 33411, 68043, 79077, 158767, 184513, 476301, 553539, 975283, 2925849, 6826981, 20480943]

約数ペア:

[(1, 20480943), (3, 6826981), (7, 2925849), (21, 975283), (37, 553539), (43, 476301), (111, 184513), (129, 158767), (259, 79077), (301, 68043), (613, 33411), (777, 26359), (903, 22681), (1591, 12873), (1839, 11137), (4291, 4773)]