20321291228

素因数分解:

$2^2\times 7^1\times {\mathrm{1409}}^1\times {\mathrm{515089}}^1$

素因数の和:516509

約数の個数: 24

約数和(自身を含む): 40671506400

約数和(自身を除く): 20350215172

約数列:

[1, 2, 4, 7, 14, 28, 1409, 2818, 5636, 9863, 19726, 39452, 515089, 1030178, 2060356, 3605623, 7211246, 14422492, 725760401, 1451520802, 2903041604, 5080322807, 10160645614, 20321291228]

約数ペア:

[(1, 20321291228), (2, 10160645614), (4, 5080322807), (7, 2903041604), (14, 1451520802), (28, 725760401), (1409, 14422492), (2818, 7211246), (5636, 3605623), (9863, 2060356), (19726, 1030178), (39452, 515089)]