19717071724

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{501911}}^1$

素因数の和:502006

約数の個数: 48

約数和(自身を含む): 41823323136

約数和(自身を除く): 22106251412

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 61, 92, 122, 161, 244, 322, 427, 644, 854, 1403, 1708, 2806, 5612, 9821, 19642, 39284, 501911, 1003822, 2007644, 3513377, 7026754, 11543953, 14053508, 23087906, 30616571, 46175812, 61233142, 80807671, 122466284, 161615342, 214315997, 323230684, 428631994, 704181133, 857263988, 1408362266, 2816724532, 4929267931, 9858535862, 19717071724]

約数ペア:

[(1, 19717071724), (2, 9858535862), (4, 4929267931), (7, 2816724532), (14, 1408362266), (23, 857263988), (28, 704181133), (46, 428631994), (61, 323230684), (92, 214315997), (122, 161615342), (161, 122466284), (244, 80807671), (322, 61233142), (427, 46175812), (644, 30616571), (854, 23087906), (1403, 14053508), (1708, 11543953), (2806, 7026754), (5612, 3513377), (9821, 2007644), (19642, 1003822), (39284, 501911)]