19664564

素因数分解:

$2^2\times {\mathrm{157}}^1\times {\mathrm{173}}^1\times {\mathrm{181}}^1$

素因数の和:515

約数の個数: 24

約数和(自身を含む): 35024808

約数和(自身を除く): 15360244

約数列:

[1, 2, 4, 157, 173, 181, 314, 346, 362, 628, 692, 724, 27161, 28417, 31313, 54322, 56834, 62626, 108644, 113668, 125252, 4916141, 9832282, 19664564]

約数ペア:

[(1, 19664564), (2, 9832282), (4, 4916141), (157, 125252), (173, 113668), (181, 108644), (314, 62626), (346, 56834), (362, 54322), (628, 31313), (692, 28417), (724, 27161)]