20723549

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{569}}^1$

素因数の和:641

約数の個数: 24

約数和(自身を含む): 26685120

約数和(自身を除く): 5961571

約数列:

[1, 7, 11, 43, 77, 121, 301, 473, 569, 847, 3311, 3983, 5203, 6259, 24467, 36421, 43813, 68849, 171269, 269137, 481943, 1883959, 2960507, 20723549]

約数ペア:

[(1, 20723549), (7, 2960507), (11, 1883959), (43, 481943), (77, 269137), (121, 171269), (301, 68849), (473, 43813), (569, 36421), (847, 24467), (3311, 6259), (3983, 5203)]