21510922

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1\times {\mathrm{643}}^1$

素因数の和:1077

約数の個数: 16

約数和(自身を含む): 33153120

約数和(自身を除く): 11642198

約数列:

[1, 2, 43, 86, 389, 643, 778, 1286, 16727, 27649, 33454, 55298, 250127, 500254, 10755461, 21510922]

約数ペア:

[(1, 21510922), (2, 10755461), (43, 500254), (86, 250127), (389, 55298), (643, 33454), (778, 27649), (1286, 16727)]