19508027

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2129}}^1$

素因数の和:2171

約数の個数: 24

約数和(自身を含む): 26224560

約数和(自身を除く): 6716533

約数列:

[1, 7, 11, 17, 49, 77, 119, 187, 539, 833, 1309, 2129, 9163, 14903, 23419, 36193, 104321, 163933, 253351, 398123, 1147531, 1773457, 2786861, 19508027]

約数ペア:

[(1, 19508027), (7, 2786861), (11, 1773457), (17, 1147531), (49, 398123), (77, 253351), (119, 163933), (187, 104321), (539, 36193), (833, 23419), (1309, 14903), (2129, 9163)]