20100493

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{439}}^1$

素因数の和:688

約数の個数: 16

約数和(自身を含む): 23879680

約数和(自身を除く): 3779187

約数列:

[1, 7, 31, 211, 217, 439, 1477, 3073, 6541, 13609, 45787, 92629, 95263, 648403, 2871499, 20100493]

約数ペア:

[(1, 20100493), (7, 2871499), (31, 648403), (211, 95263), (217, 92629), (439, 45787), (1477, 13609), (3073, 6541)]