21033649

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{6247}}^1$

素因数の和:6304

約数の個数: 16

約数和(自身を含む): 26591488

約数和(自身を除く): 5557839

約数列:

[1, 7, 13, 37, 91, 259, 481, 3367, 6247, 43729, 81211, 231139, 568477, 1617973, 3004807, 21033649]

約数ペア:

[(1, 21033649), (7, 3004807), (13, 1617973), (37, 568477), (91, 231139), (259, 81211), (481, 43729), (3367, 6247)]