20069777

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 26492928

約数和(自身を除く): 6423151

約数列:

[1, 7, 13, 23, 43, 91, 161, 223, 299, 301, 559, 989, 1561, 2093, 2899, 3913, 5129, 6923, 9589, 12857, 20293, 35903, 66677, 67123, 89999, 124657, 220547, 466739, 872599, 1543829, 2867111, 20069777]

約数ペア:

[(1, 20069777), (7, 2867111), (13, 1543829), (23, 872599), (43, 466739), (91, 220547), (161, 124657), (223, 89999), (299, 67123), (301, 66677), (559, 35903), (989, 20293), (1561, 12857), (2093, 9589), (2899, 6923), (3913, 5129)]