20518664

素因数分解:

$2^3\times {\mathrm{787}}^1\times {\mathrm{3259}}^1$

素因数の和:4052

約数の個数: 16

約数和(自身を含む): 38533200

約数和(自身を除く): 18014536

約数列:

[1, 2, 4, 8, 787, 1574, 3148, 3259, 6296, 6518, 13036, 26072, 2564833, 5129666, 10259332, 20518664]

約数ペア:

[(1, 20518664), (2, 10259332), (4, 5129666), (8, 2564833), (787, 26072), (1574, 13036), (3148, 6518), (3259, 6296)]