20931960497

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1637}}^1\times {\mathrm{1847}}^1$

素因数の和:3557

約数の個数: 32

約数和(自身を含む): 25572298752

約数和(自身を除く): 4640338255

約数列:

[1, 7, 23, 43, 161, 301, 989, 1637, 1847, 6923, 11459, 12929, 37651, 42481, 70391, 79421, 263557, 297367, 492737, 555947, 1618993, 1826683, 3023539, 11332951, 12786781, 21164773, 69541397, 130012177, 486789779, 910085239, 2990280071, 20931960497]

約数ペア:

[(1, 20931960497), (7, 2990280071), (23, 910085239), (43, 486789779), (161, 130012177), (301, 69541397), (989, 21164773), (1637, 12786781), (1847, 11332951), (6923, 3023539), (11459, 1826683), (12929, 1618993), (37651, 555947), (42481, 492737), (70391, 297367), (79421, 263557)]