18886486

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{1657}}^1$

素因数の和:1839

約数の個数: 16

約数和(自身を含む): 29247120

約数和(自身を除く): 10360634

約数列:

[1, 2, 41, 82, 139, 278, 1657, 3314, 5699, 11398, 67937, 135874, 230323, 460646, 9443243, 18886486]

約数ペア:

[(1, 18886486), (2, 9443243), (41, 460646), (82, 230323), (139, 135874), (278, 67937), (1657, 11398), (3314, 5699)]