21742495

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{557}}^1$

素因数の和:810

約数の個数: 16

約数和(自身を含む): 26971488

約数和(自身を除く): 5228993

約数列:

[1, 5, 37, 185, 211, 557, 1055, 2785, 7807, 20609, 39035, 103045, 117527, 587635, 4348499, 21742495]

約数ペア:

[(1, 21742495), (5, 4348499), (37, 587635), (185, 117527), (211, 103045), (557, 39035), (1055, 20609), (2785, 7807)]