20508724299

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{57447407}}^1$

素因数の和:57447434

約数の個数: 16

約数和(自身を含む): 33089707008

約数和(自身を除く): 12580982709

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 57447407, 172342221, 402131849, 976605919, 1206395547, 2929817757, 6836241433, 20508724299]

約数ペア:

[(1, 20508724299), (3, 6836241433), (7, 2929817757), (17, 1206395547), (21, 976605919), (51, 402131849), (119, 172342221), (357, 57447407)]