21989032

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{211433}}^1$

素因数の和:211452

約数の個数: 16

約数和(自身を含む): 44401140

約数和(自身を除く): 22412108

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 211433, 422866, 845732, 1691464, 2748629, 5497258, 10994516, 21989032]

約数ペア:

[(1, 21989032), (2, 10994516), (4, 5497258), (8, 2748629), (13, 1691464), (26, 845732), (52, 422866), (104, 211433)]