20149678913

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{53}}^2\times {\mathrm{11261}}^1$

素因数の和:11394

約数の個数: 36

約数和(自身を含む): 25729998588

約数和(自身を除く): 5580319675

約数列:

[1, 7, 13, 49, 53, 91, 371, 637, 689, 2597, 2809, 4823, 11261, 19663, 33761, 36517, 78827, 137641, 146393, 255619, 551789, 596833, 1024751, 1789333, 4177831, 7173257, 7758829, 29244817, 31632149, 54311803, 221425043, 380182621, 411217937, 1549975301, 2878525559, 20149678913]

約数ペア:

[(1, 20149678913), (7, 2878525559), (13, 1549975301), (49, 411217937), (53, 380182621), (91, 221425043), (371, 54311803), (637, 31632149), (689, 29244817), (2597, 7758829), (2809, 7173257), (4823, 4177831), (11261, 1789333), (19663, 1024751), (33761, 596833), (36517, 551789), (78827, 255619), (137641, 146393)]