21658286

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{12433}}^1$

素因数の和:12515

約数の個数: 16

約数和(自身を含む): 35511504

約数和(自身を除く): 13853218

約数列:

[1, 2, 13, 26, 67, 134, 871, 1742, 12433, 24866, 161629, 323258, 833011, 1666022, 10829143, 21658286]

約数ペア:

[(1, 21658286), (2, 10829143), (13, 1666022), (26, 833011), (67, 323258), (134, 161629), (871, 24866), (1742, 12433)]