51397479

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{449}}^1$

素因数の和:564

約数の個数: 48

約数和(自身を含む): 89856000

約数和(自身を除く): 38458521

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 79, 161, 207, 237, 449, 483, 553, 711, 1347, 1449, 1659, 1817, 3143, 4041, 4977, 5451, 9429, 10327, 12719, 16353, 28287, 30981, 35471, 38157, 72289, 92943, 106413, 114471, 216867, 248297, 319239, 650601, 744891, 815833, 2234673, 2447499, 5710831, 7342497, 17132493, 51397479]

約数ペア:

[(1, 51397479), (3, 17132493), (7, 7342497), (9, 5710831), (21, 2447499), (23, 2234673), (63, 815833), (69, 744891), (79, 650601), (161, 319239), (207, 248297), (237, 216867), (449, 114471), (483, 106413), (553, 92943), (711, 72289), (1347, 38157), (1449, 35471), (1659, 30981), (1817, 28287), (3143, 16353), (4041, 12719), (4977, 10327), (5451, 9429)]